Cisco CRS-1 - Carrier Routing System Router Troubleshooting Guide

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Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
OL-21483-02
Chapter 3 Troubleshooting Forwarding
Troubleshooting Transient Traffic Drop in Forwarding
Examples
The following example shows that the TLU pointers match. The TLU pointers are indicated in bold.
RP/0/RP0/CPU0:router# show cef 202.112.36.224/30 hardware ingress location 0/0/CPU0
202.112.36.224/30, version 1536, internal 0x42040001[1]
.
.
.
TLU2 0x0101041d
TLU2 ENTRY 0
SW: 0x00000000 00000000 00000000 00a22800
HW: 0x00000000 00000000 00000000 00a22800
label1: 0 label2: 0
num of labels: 0 next ptr: 0x0000a228
RP/0/RP0/CPU0:router# show adjacency pos 0/4/0/15 remote detail hardware location 0/0/CPU0
.
.
.
ingress adjacency
TLU3 : 0x200a228
[HW: 0x00400000 0x00000000 0x00000000 0x00082800]
num. entries : 1
num. labels : 0
label 1 : 0
label 2 : 0
next ptr : 0x828
TLU4 : 0x3000828
Entry[0]
[HW: 0x00000000 0x11410000 0x01480600
The following example shows that the address information matches. The addresses are indicated in bold.
RP/0/RP0/CPU0:router# show arp location 0/1/cpu0
Address Age Hardware Addr State Type Interface
212.27.50.157 02:08:34 0016.c761.f509 Dynamic ARPA TenGigE0/1/0/2
RP/0/RP0/CPU0:router# show adjacency ipv4 nexthop 212.27.50.157 detail loccation 0/1/cpu0
Interface Address Version Refcount Protocol
TenGigE0/1/0/2 212.27.50.157 41 2 ipv4
0016c761f5090015fa9959890800
mtu: 1500, flags 0 0 0
2894 packets, 156876 bytes
0xffffffff
Troubleshooting Transient Traffic Drop in Forwarding
To troubleshoot a momentary drop in IPV4 packet forwarding on Cisco CRS-1 router, perform the
following procedure.
SUMMARY STEPS
1. show interfaces interface name
2. show controller <ingressq/egressq> qmstats 0 location <line card>

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English