Cisco IOS XR Troubleshooting Guide for the Cisco ASR 9000 Aggregation Services Router Cisco IOS XR Software, Release 4.0 April, 2011
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Text Part Number: OL-23591-02
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CONTENTS Preface
xi
Changes to This Document
xi
Obtaining Documentation and Submitting a Service Request
CHAPTER
1
General Troubleshooting Procedures
xii
1-1
Prerequisite Documentation for Troubleshooting
1-1
Verifying and Troubleshooting CLI Access 1-2 General CLI Access Information 1-2 User Access Privileges 1-2 Cisco-support Task ID 1-3 CLI Access Through a Console Port 1-3 CLI Access Through a Terminal Server 1-3 CLI Access Through the Management Ethernet Interface
1-4
Validating and Troubleshooting Installation of the Cisco IOS XR Software Package Verifying the Software Version 1-8 Validating the Installation 1-10 Validating and Troubleshooting Cisco IOS XR Software Configuration Local and Global Configurations 1-16 Collecting Configuration Information 1-19 Verifying the Running Configuration 1-20 Using the show configuration failed Command 1-24 Verifying the System
1-41
Basic Cisco IOS XR Verification and Troubleshooting Commands man Command 1-46 describe Command 1-49 show platform Command 1-49 top Command 1-50 show context Command 1-50 show users Command 1-52 show history Command 1-52 show configuration Command 1-53 Using Trace Commands
1-16
1-26
Troubleshooting the Backplane Ethernet Control System
Displaying ASIC Errors
1-7
1-46
1-54 1-56
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MIB Location
1-57
Gathering Information Before You Call Cisco TAC 1-58 Gathering Information about Crashes and Core Dumps 1-58 Capturing Logs 1-58 Using Debug Commands 1-59 Using Diagnostic Commands 1-59 Commands Used to Display Process and Thread Details 1-59
CHAPTER
2
Verifying and Troubleshooting Interface Status
2-61
Verifying and Troubleshooting Gigabit Ethernet Interfaces
2-61
Verifying and Troubleshooting Pluggable Optical Line Card Interfaces
CHAPTER
3
Troubleshooting Interface Connectivity
2-68
3-75
Troubleshooting Ping and ARP Connectivity
3-75
Troubleshooting Bidirectional Forwarding Detection 3-81 Using show and debug Commands 3-82 BFD Sessions in Down State 3-83 BFD Sessions Flap 3-83 BFD Sessions Down on Neighboring Router 3-85 BFD Sessions Are Not Created on the LC 3-85 Troubleshooting Ethernet CFM 3-85 Using show and debug Commands 3-87 MEPs Are Not Created 3-88 MIPs Are Not Created 3-88 No CCMs are Received at the MEP or Peer MEPs Are Not Seen 3-89 Peer MEP Defects and Mismatches Are Seen 3-90 Remote Defect Indication Received 3-91 Peer MEP Times Out But No Alarm Or Action Occurs 3-92 No Debugs or Counters for Higher-Level Packets at a MEP or MIP 3-92 Dropped CFM PDUs 3-92 CFM ping Or traceroute Returns a “not found” Error 3-93 AIS Messages Are Not Sent 3-93
CHAPTER
4
Troubleshooting Packet Forwarding Understanding IPv4 CEF Troubleshooting IPv4 CEF
4-95
4-95 4-96
Troubleshooting Adjacency Information
4-101
Troubleshooting Transient Traffic Drop
4-106
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CHAPTER
5
Troubleshooting Packet Drop in the Fabric
4-109
Troubleshooting Control Plane Information
4-109
Troubleshooting Bundles and Load Balancing
5-115
Troubleshooting Routing and CEF Issues Related to Bundles and Load Balancing Verifying Routing Table Entries for Parallel Links 5-115 Verifying the CEF Database and Measuring Flows 5-117
5-115
Troubleshooting Problems with Link Bundles 5-118 Bundle Does Not Come Up 5-118 Bundle Member Not Distributing 5-119 Bundle Not Using MAC-Address From Backplane 5-119 Layer 3 Data Traffic Not Flowing 5-120 Ping Failed over Bundle 5-120 Layer 3 Packets Not Synching Over Bundle 5-121 Layer 2 Traffic Not Flowing 5-121 Bundle Statistics 5-122 Troubleshooting Layer 2 Bundles and Load Balancing 5-122 Verifying the Bundle Status, IGP Route, and CEF Database 5-122 Viewing the Expected Paths and Measuring the Flows 5-123 Troubleshooting Layer 3 Bundles and Load Balancing
CHAPTER
6
Troubleshooting Layer 3 Connectivity Using show and debug Commands Traffic Loss
5-124
6-125 6-125
6-128
Packets Are Punted and Switched in Software Traceroute Fails
6-129
6-130
Adding Routes Fails
6-131
Continuous Tracebacks
6-133
fib_mgr Does Not Come Up During LC Reload or After Multiple Process Restarts CEF Entries Out of Sync fib_mgr Crashes
6-134
6-135
6-136
Tracebacks Appearing
6-136
Traffic Loss Because of Changing encap on a Subinterface Traffic Loss during RSP Failover
6-137
6-138
Troubleshooting Virtual Router Redundancy Protocol Using show and debug Commands 6-139 VRRP Fails to Reach Active State 6-140
6-138
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Tracked Interface Failing, Router State Not Changed 6-140 VRRP State Flapping 6-140 More Than One VRRP Router Active 6-141 VRRP Active Router Not Forwarding Traffic 6-141 Traffic Loss or Unexpected VRRP State After Interface shut/no shut Additional Information On Routing Configuration Commands
CHAPTER
7
Troubleshooting Router Switch Fabric and Data Path Understanding Switch Fabric Architecture
6-142
7-143
7-143
Getting Started with Fabric Troubleshooting
7-145
Troubleshooting Packet Drops 7-146 Displaying Traffic Status in Line Cards and RSP Cards Locating Packet Drops by Examining Counters 7-148 Locating Drops of Punted Packets 7-155 Packet Drop from LC to LC 7-157 Packet Drop Between RSP and LC 7-158 Packet Drop After Certain Actions 7-160 Packet Drop After a Redundancy Switchover 7-161 Packet Drop with Unknown Reason 7-163 Troubleshooting RSP and LC Crashes Active RSP Is Crashing 7-165 Standby RSP Is Crashing 7-166 LC Is Crashing 7-167
6-142
7-147
7-165
Troubleshooting Complete Loss of Traffic 7-168 No Traffic from LC to LC 7-169 No Traffic Between RSP and LC 7-170 Gathering Fabric Information Before Calling TAC
CHAPTER
8
Troubleshooting MPLS Services
7-172
8-173
Verifying MPLS PIE Activation and MPLS Configuration Troubleshooting Connectivity Over MPLS Using show and debug Commands IP Packets Not Forwarded to LSP
8-174
8-174 8-175
IP Packets Not Forwarded to MPLS TE Tunnel
8-176
MPLS Packets Not Forwarded to MPLS TE Tunnel MPLS TE Tunnels Do Not Come Up
8-176
8-176
FRR-Protected Tunnel Goes Down After Triggering FRR MPLS TE FRR Database Not Built
8-173
8-177
8-178
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MPLS FRR Switch Time Debugging
CHAPTER
9
8-178
Troubleshooting L2VPN and Ethernet Services
9-181
Troubleshooting VLAN Traffic and L2 TCAM Classification 9-181 Understanding Problems with VLAN Traffic and L2 TCAM Classification Verifying the Configuration Is Correct 9-182 Verifying Interfaces, Subinterfaces, and Packet Forwarding 9-183 Troubleshooting Multipoint Layer 2 Services 9-190 Basic Bridging: Example 9-190 Verifying MAC Address Updates 9-192 Troubleshooting Multipoint Layer 2 Bridging Services (VPLS) Troubleshooting Bridge Domains That Use BGP-AD 9-201
9-182
9-195
Troubleshooting Point-to-Point Layer 2 Services 9-206 Example of Point-To-Point Layer 2 Deployment 9-206 Using show and debug Commands 9-210 AC Is Down 9-211 Pseudowire Is Down 9-212 VPWS Not Forwarding Traffic from AC to Pseudowire 9-212 Pseudowire Up but Ping Fails 9-213 Traffic Loss 9-213 Traffic Loss During RSP Fail Over 9-213 Preferred Path Not Working 9-214 Troubleshooting Specific Outage Scenarios In Layer 2 Services 9-214 Using show and debug Commands 9-215 L2VPN Discovery Not Working 9-217 AC Is Down 9-218 Pseudowire Is Down 9-219 VPLS Not Forwarding Flooding Traffic 9-220 VPLS Not Forwarding Flooding Traffic from AC to Pseudowire 9-224 VPLS Not Forwarding Flooding Traffic from Pseudowire to AC 9-224 VPLS Not Forwarding Unicast Traffic from AC to AC 9-225 VPLS Not Forwarding Unicast Traffic from AC to Pseudowire 9-225 VPLS Not Forwarding Flooding Traffic from Pseudowire to AC 9-225 Pseudowire Up but Ping Fails 9-226 Traffic Loss 9-226 Pseudowire Flap Causing Traffic Loss 9-226 Traffic Loss During RSP Fail Over 9-227 Preferred Path Not Working 9-227 Troubleshooting Dynamic Host Configuration Protocol Snooping
9-227
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Show Commands 9-228 Trace Commands 9-228 Syslog Commands 9-228 Tech-support Commands 9-229 Action Commands 9-229 L2VPN Commands 9-229 L2Snoop Commands 9-229 Interface Controller Commands 9-230 Troubleshooting Multiple Spanning Tree 9-230 Using show and debug Commands 9-230 MSTP Incorrectly or Inconsistently Formed 9-230 MSTP Correctly Formed, but Traffic Flooding 9-231 Packet Forwarding Does Not Match MSTP State 9-231 MSTAG Access Network Does Not Recognize MSTAG Node as Root Traffic Not Switching Through MSTAG Node(s) 9-232 Additional References—Command Reference and Configuration Guides
CHAPTER
10
Troubleshooting Quality of Service and Access Control Lists Using show and debug Commands
Packets in Wrong Queue
10-233
10-235
10-235
10-236
Packets Incorrectly Marked
10-236
Packets Incorrectly Policed
10-237
Shaping Incorrect
9-232
10-234
Service-Policy Configuration Is Rejected Packets are Incorrectly Classified
9-231
10-237
Weighted Random Early Detection Incorrect Bandwidth Not Guaranteed
10-237
10-238
Bandwidth Ratio Not Working
10-238
Non-zero Queue(conform) and Queue(exceed) Counters In show policy-map Commands Unable to Modify or Delete policy-map or class-map Unable to Modify or Delete class-map ACL Unable to Delete service-policy
10-239
10-240
10-240
10-240
After QoS EA Restarts, show policy-map interface Fails After QoS EA Restarts, service-policy config Fails show policy-map interface Output Error
10-241
10-241
Bundle Members Not Configured with service-policy Troubleshooting Access Control Lists
10-240
10-241
10-241
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Using show and debug Commands 10-242 ACL Messages Not Appearing 10-243 Fragmented Packets Being Accepted 10-243 Egress Counter Incorrect or Not Working 10-244 ACL Interface Bind Rejected 10-244 Single ACE Using Many TCAMs 10-244 ACL Using Varying TCAM Space 10-245 ACL Logs Not Working for Ethernet Services 10-245 Ethernet Services ACL Bind on Interface Rejected 10-245 Changing ACL Exhausts TCAM 10-245 Cannot Delete ACL 10-246 DF Bit Not Supported 10-246 Max ACL Limit Reached 10-246 Unsupported Combinations in ACL 10-246 No Statistics Counters 10-246 TCAMs Out of Resources 10-246
CHAPTER
11
Troubleshooting Multicast Services
11-247
Troubleshooting IGMP Snooping (Layer 2 Multicast) 11-247 Using show Commands 11-247 Using the debug, trace, and show tech-support Commands 11-249 Troubleshooting Missing Routes and Forwarding Errors 11-250 Troubleshooting Native Multicast Routing (Layer 3) 11-256 Using show and debug Commands 11-256 Multicast PIE Installation Fails 11-262 Multicast CLI Unavailable Although PIE Is Installed 11-263 “This command not authorized” Error Message 11-263 Dynamic IGMP Failure 11-263 Traffic Fails on Some Interfaces 11-267 Traffic Fails on Some Interfaces—MGID 11-268 Throughput Loss at Receiver Interfaces 11-268 Reverse Path Forwarding IP Address Problems 11-268 INDEX
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Preface This guide describes how to troubleshooting a router using the Cisco IOS XR software. This preface contains the following sections: •
Changes to This Document, page xi
•
Obtaining Documentation and Submitting a Service Request, page xii
Changes to This Document Table 1 lists the technical changes made to this document since it was first printed. Table 1
Changes to This Document
Revision
Date
OL-23591-02
April, 2011 Added details for the following topics:
Change Summary •
Chapter 1, “General Troubleshooting Procedures”—Added information on prerequisite documentation for troubleshooting, Cisco-support task ID, show tech-support command, displaying ASIC errors, gathering logs and system information. Modified the information on diagnostics.
•
Divided interface troubleshooting into two separate chapters—Chapter 2, “Verifying and Troubleshooting Interface Status”and Chapter 3, “Troubleshooting Interface Connectivity.”
•
Chapter 3, “Troubleshooting Interface Connectivity”—Added information on connectivity fault management (CFM).
•
Chapter 6, “Troubleshooting Layer 3 Connectivity”—Added information on CEF and interface accounting.
•
Chapter 7, “Troubleshooting Router Switch Fabric and Data Path”—Added information on NP counters.
•
Chapter 8, “Troubleshooting MPLS Services”—Corrected syntax of several commands.
continued ...
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Preface
Table 1
Changes to This Document (continued)
Revision
Date
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April, 2011 ... continued
Change Summary
•
Chapter 9, “Troubleshooting L2VPN and Ethernet Services”—Enhanced information about VLAN verification, included sample VLAN and PW configurations, added a section on Verifying MAC Address Updates, enhanced information about multipoint Layer 2 services (VPLS), moved information on DHCP snooping to this chapter, enhanced information on MST access gateways (MSTAGs). Reorganized the chapter for ease of use.
•
Chapter 10, “Troubleshooting Quality of Service and Access Control Lists”—Added information on queue conform and queue exceed counters displayed by the policy-map command.
•
Chapter 11, “Troubleshooting Multicast Services”—Reorganized this chapter to highlight IGMP snooping (Layer 2 MC) and native MC (Layer 3), and added information to each of these sections.
OL-23591-01
November 2010
(Initial release of this document as a multichapter book.) The content was reorganized for usability and updated to reflect Release 3.9 and 4.0 features.
OL-20794-01
December 2009
Initial release of this document as a single module.
Obtaining Documentation and Submitting a Service Request For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.
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CH A P T E R
1
General Troubleshooting Procedures This chapter describes general troubleshooting techniques you can use to troubleshoot the Cisco ASR 9000 Aggregation Series Router. It includes the following sections: •
Prerequisite Documentation for Troubleshooting, page 1-1
•
Verifying and Troubleshooting CLI Access, page 1-2
•
Validating and Troubleshooting Installation of the Cisco IOS XR Software Package, page 1-7
•
Validating and Troubleshooting Cisco IOS XR Software Configuration, page 1-16
•
Verifying the System, page 1-26
•
Troubleshooting the Backplane Ethernet Control System, page 1-41
•
Basic Cisco IOS XR Verification and Troubleshooting Commands, page 1-46
•
Displaying ASIC Errors, page 1-54
•
Using Trace Commands, page 1-56
•
MIB Location, page 1-57
•
Gathering Information Before You Call Cisco TAC, page 1-58
Prerequisite Documentation for Troubleshooting As a starting point for troubleshooting, we strongly recommend that you have a system of maintaining and accessing detailed information about your network and ASR 9000 router. This should include: •
Current documentation about the system, including chassis numbers, serial numbers, installed cards, and location of chassis details.
•
Diagrams illustrating the connectivity of the router control plane Ethernet network.
•
Detailed documentation about the network, including the following: – Up-to-date internetwork map that outlines the physical location of all the devices on the network
and how they are connected, as well as a logical map of interfaces, network addresses, network numbers, subnetworks, and so on – List of all network protocols implemented in your network; and for each of the protocols
implemented, a list of the network numbers, subnetworks, zones, areas, and so on that are associated with them – All points of contact to external networks – Routing protocol for each external network connection
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Verifying and Troubleshooting CLI Access
– Established baseline for your network, that is, the normal network behavior and performance at
different times of the day so that you can compare any problems with a baseline – Name of the device that is the spanning tree root bridge for the system control plane Ethernet
network •
Captured output of all commands
Verifying and Troubleshooting CLI Access Ensure that the system has been booted. If the system has not booted, see Cisco IOS XR Getting Started Guide for the Cisco ASR 9000 Aggregation Services Router for information on booting a router running Cisco IOS XR software. The following CLI access troubleshooting information is provided: •
General CLI Access Information, page 1-2
•
User Access Privileges, page 1-2
•
Cisco-support Task ID, page 1-3
•
CLI Access Through a Console Port, page 1-3
•
CLI Access Through a Terminal Server, page 1-3
•
CLI Access Through the Management Ethernet Interface, page 1-4
General CLI Access Information The following CLI access information applies to a console port, terminal server, and management Ethernet interface connections. Once the terminal emulation software is started and you press Enter, a router prompt should appear. If no prompt appears, verify the physical connection to the console port and press Enter again. If the prompt still does not appear, contact Cisco Technical Support. See the “Obtaining Documentation and Submitting a Service Request” section on page xii for Cisco Technical Support contact information. If a prompt appears, indicating that the CLI is accessible, but your login username and password are invalid, you are prevented from accessing the router. Verify that you have the correct username and password. If you have the correct username and password, but are locked out of the router, you may need to perform password recovery to access the system again. See Cisco ASR 9000 Aggregation Services Router ROM Monitor Guide for password recovery procedures.
User Access Privileges When you log on to the router, use a username that is associated with a valid user group that has the authorization to execute the required commands. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance. See Cisco ASR 9000 Aggregation Services Router System Security Command Reference and Cisco ASR 9000 Aggregation Services Router System Security Configuration Guide for information on users, usernames, and user groups.
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Chapter 1
General Troubleshooting Procedures Verifying and Troubleshooting CLI Access
Cisco-support Task ID Many of the troubleshooting commands can be performed only by users who are assigned to a user group that includes the cisco-support task ID. Users without the cisco-support task ID receive a “This command is not authorized” response if they attempt to use those commands. The cisco-support commands are normally reserved for use by Cisco Technical Support personnel, because there is some risk that they may cause performance or other issues.
Caution
These Cisco support commands are normally reserved for use by Cisco Technical Support personnel only. There is some risk that they may cause performance or other issues that impact products without proper usage, and we highly recommend that you contact Cisco Technical Support prior to using any of these commands. See the “Obtaining Documentation and Submitting a Service Request” section on page xii for information on contacting Cisco TAC.
CLI Access Through a Console Port The first time a router is started, you must use a direct connection to the console port to connect to the router and enter the initial configuration. See Cisco ASR 9000 Aggregation Services Router Router Getting Started Guide for information on connecting to the router through a console port. When you use a direct connection to the Console port, CLI commands are entered at a terminal or at a computer running terminal emulation software. A direct Console port connection is useful for entering initial configurations and performing some debugging tasks.
CLI Access Through a Terminal Server A terminal server connection provides a way to access the Console port from a remote location. A terminal server connection is used when you need to perform tasks that require Console port access from a remote location. Connecting to a router through a terminal server is similar to directly connecting through the Console port. For both connection types, the physical connection takes place through the Console port. The difference is that the terminal server connects directly to the Console port, and you must use a Telnet session to establish communications through the terminal server to the router. If you are unable to access the CLI through a terminal server, perform the following procedure. Step 1
Disable flow control (XON/XOFF) on the Terminal Server.
Step 2
Disable local echo mode on the Terminal Server.
Step 3
Verify the router name configured using the hostname command.
Step 4
Check whether the port address is configured correctly.
Step 5
Verify whether the address (interface) used for the reverse Telnet is up/up. The output of the show interfaces brief command provides this information. Cisco recommends you to use loopbacks because they are always up.
Step 6
Ensure that you have the correct type of cabling. For example, you must not use a crossover cable to extend the length.
Step 7
Establish a Telnet connection to the IP address port to test direct connectivity. You must Telnet from both an external device and the terminal server. For example, telnet 172.21.1.1 2003.
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Step 8
Ensure that you have the transport input telnet command under the line for the target device. The target device is the device that is connected to the terminal server.
Step 9
Use a PC/dumb terminal to connect directly to the console of the target router. The target router is the device connected to the terminal server. This step helps you identify the presence of a port issue.
Step 10
If you are disconnected, check timeouts. You can remove or adjust timeouts.
Note
If you encounter authentication failures, remember that the terminal server performs the first authentication (if configured), while the device to which you try to connect performs the second authentication (if configured). Verify whether AAA is configured correctly on both the terminal server and the connecting device.
Step 11
Contact Cisco Technical Support. See the “Obtaining Documentation and Submitting a Service Request” section on page xii for Cisco Technical Support contact information.
CLI Access Through the Management Ethernet Interface The Management Ethernet interface allows you to manage the router using a network connection. Before you can use the Management Ethernet interface, the interface must be configured. See Cisco ASR 9000 Aggregation Services Router Router Getting Started Guide for information on configuring the interface. Once configured, the network connection takes place between client software on a workstation computer and a server process within the router. The type of client software you use depends on the server process you use. See Cisco ASR 9000 Aggregation Services Router Router Getting Started Guide for information on the client and server services supported by the Cisco IOS XR software. If you are unable to access the CLI through a management Ethernet interface, perform the following procedure.
SUMMARY STEPS 1.
show interface MgmtEth interface-instance
2.
show arp MgmtEth interface-instance
3.
show ipv4 interface type instance
4.
ping
5.
Contact Cisco Technical Support if the problem is not resolved
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DETAILED STEPS
Step 1
Command or Action
Purpose
show interfaces MgmtEth interface-instance
Displays statistics for all interfaces configured on the router.
Example:
Check the following:
RP/0/RSP0/CPU0:router# 0/RSP0/CPU0/0
show interfaces MgmtEth
•
MgmtEth interface is up
•
Line protocol (state of the Layer 2 line protocol) is up
•
Number of input and output errors
If an interface is administratively down, use the no shutdown command to enable the interface. If an interface is down (operationally down), input or output errors are not within an acceptable range, the management Ethernet interface is not enabled when the no shutdown command is used, or the line protocol is down, see Chapter 2, “Verifying and Troubleshooting Interface Status,” for detailed information on troubleshooting interfaces. If the interface is up and the input and output errors are within an acceptable range, proceed to Step 2. Step 2
show arp MgmtEth interface-instance
Displays the Address Resolution Protocol (ARP) table for the management Ethernet interface.
Example:
Ensure that the expected ARP entries exist for the management Ethernet interface.
RP/0/RSP0/CPU0:router# 0/RSP0/CPU0/0
show arp MgmtEth
If the expected ARP entries exist, proceed to Step 3. If the expected ARP entries do not exist, verify the physical layer Ethernet interface connectivity. Use the show arp trace command to display the ARP entries in the buffer. See the Chapter 2, “Verifying and Troubleshooting Interface Status,” for more information on troubleshooting interfaces.
Step 3
show ipv4 interface type instance
Displays the usability status of interfaces configured for IPv4.
Example:
If the interface is in the expected state, proceed to Step 4.
RP/0/RSP0/CPU0:router# MgmtEth 0/RSP0/CPU0/0
show ipv4 interface
If the status of the interface is not as expected, see Chapter 2, “Verifying and Troubleshooting Interface Status,” for more information on troubleshooting interfaces.
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Step 4
Command or Action
Purpose
ping
Checks host reachability and network connectivity on the IP network. Note
Example: RP/0/RSP0/CPU0:router#
ping
Enter a specific IP address or follow the prompts to send the ping message to the target address.
If no problems are detected, proceed to Step 5. Step 5
Contact Cisco Technical Support.
If the problem is not resolved, contact Cisco Technical Support. For Cisco Technical Support contact information, see the “Obtaining Documentation and Submitting a Service Request” section on page xii.
Examples The output from the show interfaces MgmtEth command displays the status of the management Ethernet interface. In the following example, the management Ethernet interface is up, and there are 20 input errors and 8 output errors. RP/0/RSP0/CPU0:router# show interface MgmtEth 0/RSP0/CPU0/0 Tue Sep 14 14:21:07.496 DST MgmtEth0/RSP0/CPU0/0 is up, line protocol is up Interface state transitions: 1 Hardware is Management Ethernet, address is 001b.53ff.4a62 (bia 001b.53ff.4a62) Description: Connected to Lab LAN Internet address is 172.29.52.137/24 MTU 1514 bytes, BW 100000 Kbit (Max: 100000 Kbit) reliability 73/255, txload 0/255, rxload 0/255 Encapsulation ARPA, Half-duplex, 100Mb/s, THD, link type is autonegotiation output flow control is off, input flow control is off loopback not set, ARP type ARPA, ARP timeout 04:00:00 Last input 00:00:00, output 00:00:00 Last clearing of "show interface" counters never 5 minute input rate 2000 bits/sec, 3 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 373082 packets input, 51028824 bytes, 239105 total input drops 62028 drops for unrecognized upper-level protocol Received 2601 broadcast packets, 194653 multicast packets 10 runts, 0 giants, 0 throttles, 0 parity 20 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 45232 packets output, 3042775 bytes, 0 total output drops Output 24 broadcast packets, 0 multicast packets 8 output errors, 0 underruns, 0 applique, 0 resets 0 output buffer failures, 0 output buffers swapped out 1 carrier transitions
The output from the show arp MgmtEth 0/RSP0/CPU0/0 command displays the ARP table for the management Ethernet interface. Use the output from this command to verify that there are dynamic ARP addresses in the table and that ARP is functioning over the interface. The output shows that ARP is functioning over the management Ethernet interface 0/RSP0/CPU0/0. RP/0/RSP0/CPU0:router# show arp MgmtEth 0/RSP0/CPU0/0 Tue Sep 14 14:24:03.962 DST ------------------------------------------------------------------------------0/RSP0/CPU0 ------------------------------------------------------------------------------Address Age Hardware Addr State Type Interface
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172.29.52.1 172.29.52.13 172.29.52.21 172.29.52.27 172.29.52.28 172.29.52.32 172.29.52.36 172.29.52.46 172.29.52.47 172.29.52.60 172.29.52.69 172.29.52.70 172.29.52.71 172.29.52.75 172.29.52.76 172.29.52.81 172.29.52.83 172.29.52.127 172.29.52.134 172.29.52.135 172.29.52.136 172.29.52.137 172.29.52.138 172.29.52.161 172.29.52.171 172.29.52.172 172.29.52.173 172.29.52.180 172.29.52.217 172.29.52.226 172.29.52.243
01:44:00 01:16:59 01:40:25 02:18:16 02:05:29 01:42:16 02:39:34 01:36:50 01:36:39 01:35:20 00:00:00 01:23:38 02:00:47 01:44:59 01:41:10 00:15:35 00:21:05 01:43:38 01:15:53 01:01:46 00:43:39 01:32:12 00:16:12 00:17:47 01:57:04 01:26:50 01:16:21 01:28:32 01:48:25
0000.0c07.ac01 0010.79e9.6038 0022.0d5a.a6c4 0012.7fd6.ba08 0012.7fd6.ba09 0022.0d26.3bc5 0026.527c.5341 0012.7fd6.b9aa 0012.7fd6.b9ab 0003.a099.8000 001b.7852.4bd1 0011.93ef.e8e6 0011.93ef.e8fe 5a59.0000.0202 0011.93ef.e8ea 001a.6c40.d89c 001a.6c40.d89c 0013.c4cb.a200 001f.6c26.7fc0 001f.6c25.c480 0022.5560.8840 001b.53ff.4a62 001b.53ff.4a62 0019.aaa3.3d48 001c.5838.5b28 001c.5838.5b29 0015.c75f.09f8 0015.c75f.0800 0019.aaa3.b5ff 0010.f60e.8400 001e.79c1.e0c1
Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Interface Interface Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic
ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA ARPA
MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0 MgmtEth0/RSP0/CPU0/0
The ping command checks to see if the neighbor is reachable. RP/0/RSP0/CPU0:router# ping 172.16.52.28 count 10 Tue Sep 14 14:36:52.441 DST Type escape sequence to abort. Sending 10, 100-byte ICMP Echos to 172.16.52.28, timeout is 2 seconds: !!!!!!!!!! Success rate is 100 percent (10/10), round-trip min/avg/max = 1/1/2 ms
Validating and Troubleshooting Installation of the Cisco IOS XR Software Package The Cisco IOS XR software is divided into software packages allowing you to select which features run on your router. Each package contains the components to perform a specific set of router functions, such as routing, security, or Modular Services Card (MSC) support. Bundles are groups of packages that can be downloaded as a set. For example, the Unicast Routing Core Bundle provides six packages for use on every router. This section provides information on how to validate and troubleshoot the Cisco IOS XR software package installation. The following sections are provided: •
Verifying the Software Version, page 1-8
•
Validating the Installation, page 1-10
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Verifying the Software Version To verify the Cisco IOS XR software version, perform the following procedure.
SUMMARY STEPS 1.
show version
2.
show install
DETAILED STEPS
Step 1
Command or Action
Purpose
show version
Displays a variety of system information, including hardware and software version, router uptime, boot settings (configuration register), and active software.
Example: RP/0/RSP0/CPU0:router#
show version
Determine if all expected packages are installed and the current software versions are the expected versions. If the expected packages are not installed or are not the expected version, install the correct package. See Cisco ASR 9000 Aggregation Series Router Getting Started Guide for information on installing and upgrading Cisco IOS XR software packages.
Step 2
Displays a list of all installed and active packages on each node.
show install
Example: RP/0/RSP0/CPU0:router#
show install
Determine if the expected packages are installed on each node. If the software or active package versions are not as expected for a node, the package is not compatible with the node for which it is being activated, or the package being activated is not compatible with the current active software set, install the correct software or package on the node. See Cisco ASR 9000 Aggregation Series Router Getting Started Guide for information on installing and upgrading Cisco IOS XR software packages.
The following example shows that the Cisco IOS XR software and active packages are version 4.0.0. RP/0/RSP0/CPU0:router# show version Cisco IOS XR Software, Version 4.0.0 Copyright (c) 2010 by cisco Systems, Inc. ROM: System Bootstrap, Version 1.04(20100216:021454) [ASR9K ROMMON], router uptime is 1 day, 18 hours, 34 minutes System image file is "bootflash:disk0/asr9k-os-mbi-4.0.0/mbiasr9k-rp.vm" cisco ASR9K Series (MPC8641D) processor with 4194304K bytes of memory. MPC8641D processor at 1333MHz, Revision 2.2 2 Management Ethernet
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12 DWDM controller(s) 12 TenGigE 40 GigabitEthernet 2 SONET/SDH 2 Packet over SONET/SDH 219k bytes of non-volatile configuration memory. 975M bytes of compact flash card. 33994M bytes of hard disk. 1605616k bytes of disk0: (Sector size 512 bytes). 1605616k bytes of disk1: (Sector size 512 bytes). Configuration register on node 0/RSP0/CPU0 is 0x0 Boot device on node 0/RSP0/CPU0 is disk0: Package active on node 0/RSP0/CPU0: asr9k-optics-supp, V 4.0.0[DT_IMAGE], Cisco Systems, at disk0:asr9k-optics-supp-4.0.0 Built on Wed Sep 8 16:17:30 DST 2010 By sjc5-gf-021 in /auto/ioxbuild8/production/4.0.0.DT_IMAGE/asr9k/workspace for pie asr9k-fwding, V 4.0.0[DT_IMAGE], Cisco Systems, at disk0:asr9k-fwding-4.0.0 Built on Wed Sep 8 16:12:40 DST 2010 By sjc5-gf-021 in /auto/ioxbuild8/production/4.0.0.DT_IMAGE/asr9k/workspace for pie asr9k-cpp, V 4.0.0[DT_IMAGE], Cisco Systems, at disk0:asr9k-cpp-4.0.0 Built on Wed Sep 8 16:13:28 DST 2010 By sjc5-gf-021 in /auto/ioxbuild8/production/4.0.0.DT_IMAGE/asr9k/workspace for pie asr9K-doc-supp, V 4.0.0[DT_IMAGE], Cisco Systems, at disk0:asr9K-doc-supp-4.0.0 Built on Wed Sep 8 16:16:57 DST 2010 By sjc5-gf-021 in /auto/ioxbuild8/production/4.0.0.DT_IMAGE/asr9k/workspace for pie asr9k-scfclient, V 4.0.0[DT_IMAGE], Cisco Systems, at disk0:asr9k-scfclient-4.0.0 Built on Wed Sep 8 16:13:26 DST 2010 --More-. . .
The following example shows that the Cisco IOS XR software and active packages are version 4.0.0. If there is an expected package missing or an active package is not an expected package, install and activate the missing package or upgrade the unexpected package to the appropriate package. See Cisco ASR 9000 Aggregation Services Router Router Getting Started Guide for details on installing, activating, and upgrading software packages. RP/0/RSP0/CPU0:router# show install Node 0/RSP0/CPU0 [RP] [SDR: Owner] Boot Device: disk0: Boot Image: /disk0/asr9k-os-mbi-4.0.0/mbiasr9k-rp.vm Active Packages: disk0:asr9k-mini-p-4.0.0 disk0:asr9k-optic-4.0.0 disk0:asr9k-doc-p-4.0.0 disk0:asr9k-k9sec-p-4.0.0 disk0:asr9k-video-p-4.0.0 disk0:asr9k-mpls-p-4.0.0 disk0:asr9k-mgbl-p-4.0.0 disk0:asr9k-mcast-p-4.0.0 Node 0/1/CPU0 [LC] [SDR: Owner] Boot Device: mem: Boot Image: /disk0/asr9k-os-mbi-4.0.0/lc/mbiasr9k-lc.vm Active Packages: disk0:asr9k-mini-p-4.0.0
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disk0:asr9k-optic-4.0.0 disk0:asr9k-video-p-4.0.0 disk0:asr9k-mpls-p-4.0.0 disk0:asr9k-mcast-p-4.0.0 Node 0/2/CPU0 [LC] [SDR: Owner] Boot Device: mem: Boot Image: /disk0/asr9k-os-mbi-4.0.0/lc/mbiasr9k-lc.vm Active Packages: disk0:asr9k-mini-p-4.0.0 disk0:asr9k-optic-4.0.0 disk0:asr9k-video-p-4.0.0 disk0:asr9k-mpls-p-4.0.0 disk0:asr9k-mcast-p-4.0.0 Node 0/4/CPU0 [LC] [SDR: Owner] Boot Device: mem: Boot Image: /disk0/asr9k-os-mbi-4.0.0/lc/mbiasr9k-lc.vm Active Packages: disk0:asr9k-mini-p-4.0.0 disk0:asr9k-optic-4.0.0 disk0:asr9k-video-p-4.0.0 disk0:asr9k-mpls-p-4.0.0 disk0:asr9k-mcast-p-4.0.0 Node 0/6/CPU0 [LC] [SDR: Owner] Boot Device: mem: Boot Image: /disk0/asr9k-os-mbi-4.0.0/lc/mbiasr9k-lc.vm Active Packages: disk0:asr9k-mini-p-4.0.0 disk0:asr9k-optic-4.0.0 disk0:asr9k-video-p-4.0.0 disk0:asr9k-mpls-p-4.0.0 disk0:asr9k-mcast-p-4.0.0
Validating the Installation Validate the Cisco IOS XR software package installation to ensure the packages were installed correctly. The following commands are used to validate the currently installed software packages: •
install verify Command, page 1-10
•
show install active Command, page 1-12
•
show install committed Command, page 1-14
install verify Command Use the install verify command to verify the consistency of a previously installed software set with the package file from which it originated. This command can be used as a debugging tool to verify the validity of the files that constitute the packages to determine if there are any corrupted files. The command is also used to check that the install infrastructure is up and running and to determine if all files are expected. If there are corrupted files, see Cisco ASR 9000 Aggregation Services Router Router Getting Started Guide for information on deactivating and removing software packages and adding and activating software packages.
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Note
The install verify command can take up to two minutes per package to process.
Note
The install verify command ignores secure domain router (SDR) boundaries and performs the operation in global scope. The following example shows the output of the install verify command. The output is used to verify the consistency of a previously installed software set with the package file from which it originated. RP/0/RSP0/CPU0:router(admin)# install verify Sat Sep 25 08:18:14.077 DST Install operation 3 '(admin) install verify packages' started by user_A 'dwolman-r' via CLI at 08:18:14 DST Sat Sep 25 2010. The install operation will continue asynchronously. RP/0/RSP0/CPU0:router(admin)#Info: This operation can take up to 2 minutes per package being verified. Info: Please be patient. Info: 0/0/CPU0 [LC] [SDR: Owner] Info: meta-data: [SUCCESS] Verification Successful. Info: /install/asr9k-optics-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-fwding-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-cpp-4.0.0: [SUCCESS] Verification Successful. Info: /install/asr9k-scfclient-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-video-adv-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-mpls-4.0.0: [SUCCESS] Verification Successful. Info: /install/iosxr-mcast-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-routing-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-infra-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-fwding-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-diags-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-adv-video-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-diags-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-mcast-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-base-4.0.0: [SUCCESS] Verification Successful. Info: 0/6/CPU0 [LC] [SDR: Owner] Info: meta-data: [SUCCESS] Verification Successful. Info: /install/asr9k-optics-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-fwding-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-cpp-4.0.0: [SUCCESS] Verification Successful. Info: /install/asr9k-scfclient-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-video-adv-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-mpls-4.0.0: [SUCCESS] Verification Successful. Info: /install/iosxr-mcast-4.0.0: [SUCCESS] Verification
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Info: Successful. Info: /install/iosxr-routing-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-infra-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-fwding-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/iosxr-diags-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-adv-video-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-diags-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-mcast-supp-4.0.0: [SUCCESS] Verification Info: Successful. Info: /install/asr9k-base-4.0.0: [SUCCESS] Verification Successful. Info: 0/5/CPU0 [LC] [SDR: Owner] . . . Info: Verification Summary: Info: 0/0/CPU0: SUCCESSFUL. No anomalies found. Info: 0/6/CPU0: SUCCESSFUL. No anomalies found. Info: 0/5/CPU0: SUCCESSFUL. No anomalies found. Info: 0/7/CPU0: SUCCESSFUL. No anomalies found. Info: 0/1/CPU0: SUCCESSFUL. No anomalies found. Info: 0/4/CPU0: SUCCESSFUL. No anomalies found. Info: 0/2/CPU0: SUCCESSFUL. No anomalies found. Info: 0/RSP0/CPU0: SUCCESSFUL. No anomalies found. Info: The system needs no repair. Install operation 3 completed successfully at 08:19:48 DST Sat Sep 25 2010.
show install active Command Use the show install active command to display active software packages. Verify that the command output matches the output of the show install committed command. If the output does not match, when you reload the router, the software displayed in the show install committed command output is the software that will be loaded. For example, the following output shows two different software package versions, one is the active version and the other is the committed version, so when the router reloads, the 3.9.1 version will be loaded even though 4.0.0 is the currently active version on 0/RSP0/CPU0. RP/0/RSP0/CPU0:router(admin)# show install active location 0/RSP0/cpu0 Node 0/RSP0/CPU0 [RP] [SDR: Owner] Boot Device: disk0: Boot Image: /disk0/asr9k-os-mbi-4.0.0/mbiasr9k-rp.vm
