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yukiyosh
Cisco Employee
Cisco Employee

 

 

はじめに

本ドキュメントは Catalyst 9300 / Catalyst9500 で基本的な各種トラブルシューティングで はじめに確認するコマンド群を紹介します。

 

トラブルシューティングは事象に対して一回のコマンド群の採取で、全てを網羅することは不可能であり、Step by Step で事象の詳細化、絞り込み化が重要です。

一回のコマンド採取のみしか許可されないというユーザ様は、本番環境とは別環境で再現性の確立の上、コマンド採取頂くことが有効です。

 

  

ASIC Exceptions

例:

Cat9300#show platform hardware fed active fwd-asic drops exceptions

****EXCEPTION STATS ASIC INSTANCE 0 (asic/core 0/0)****
=================================================================================
 Asic/core |                NAME                  |   prev   |  current  |  delta
=================================================================================
0  0  NO_EXCEPTION                                   0          0           0
0  0  IPV4_CHECKSUM_ERROR                            0          0           0

 

  

  

CoPP Drops

例:

Cat9300#sh plat hard fed switch active qos queue stats internal cpu policer

                         CPU Queue Statistics                  
================================================================================================
                                              (default)  (set)     Queue        Queue
QId PlcIdx  Queue Name                Enabled   Rate     Rate      Drop(Bytes)  Drop(Frames)
--------------------------------------------------------------------------------------------
0    11     DOT1X Auth                  No      1000      1000     0            0          
1    1      L2 Control                  No      500       600      0            0          
2    14     Forus traffic               No      1000      1000     0            0          
3    0      ICMP GEN                    Yes     600       600      0            0          
4    2      Routing Control             Yes     1800      1800     0            0          
5    14     Forus Address resolution    No      1000      1000     0            0          
6    3      ICMP Redirect               Yes     600       200      0            0          
7    16     Unused                      No      1000      1000     0            0          
8    4      L2 LVX Cont Pack            Yes     1000      1000     0            0          
9    16     Unused                      No      1000      1000     0            0     

  

  

CPU Inteface

例:

Cat9300#show platform software fed active cpu-interface 
queue                      retrieved   dropped     invalid     hol-block   
-------------------------------------------------------------------------
Routing Protocol           0           0           0           0           
L2 Protocol                0           0           0           0           
sw forwarding              0           0           0           0           
broadcast                  0           0           0           0           
icmp                       0           0           0           0           
icmp redirect              0           0           0           0           
logging                    0           0           0           0           
rpf-fail                   0           0           0           0           
DOT1X authentication       0           0           0           0           
Forus Traffic              0           0           0           0           
Forus Resolution           0           0           0           0           
Wireless q5                0           0           0           0           
Wireless q1                0           0           0           0           
Wireless q2                0           0           0           0           
Wireless q3                0           0           0           0           
Wireless q4                0           0           0           0           
Learning cache             0           0           0           0           
Topology control           0           0           0           0           
Proto snooping             0           0           0           0           
BFD Low latency            0           0           0           0           
Transit Traffic            0           0           0           0           
Multi End station          0           0           0           0           
Health Check               0           0           0           0           
Health Check               0           0           0           0           
Crypto control             0           0           0           0           
Exception                  0           0           0           0           
General Punt               0           0           0           0           
NFL sampled data           0           0           0           0           
STG cache                  0           0           0           0           
EGR exception              0           0           0           0           
FSS                        0           0           0           0           
Multicast data             0           0           0           0       

  

  

CPU Inject Queues

Inject: CP generated protocol packet sent to DP to egress out on IO interface(s).

例:

Cat9300#show platform software fed active inject cpuq all
Inject CPU Q Statistics
===========================================

CPU Q Id                         : 0
CPU Q Name                       : TX_CPUQ_PRIO_LOW
Packets received from IOSd       : 766
Enq to pkt driver total attempts : 0
Enq to pkt driver failed count   : 0
Count of TX CMPL received        : 0
TX suspend count                 : 0
TX unsuspend count               : 0

  

  

CPU Punt Queues

Punt: Ingress protocol control packet which intercepted by DP sent to the CP to process it.

Dumps all the packets sent to the different CPU queues and possible drops.

例:

Cat9300#show platform software fed active punt cpuq all
Punt CPU Q Statistics
===========================================

CPU Q Id                       : 0
CPU Q Name                     : CPU_Q_DOT1X_AUTH
Packets received from ASIC     : 0
Send to IOSd total attempts    : 0
Send to IOSd failed count      : 0
RX suspend count               : 0

  

 

TCAM Utilizaion

例:

Cat9300#show platform hardware fed active fwd-asic resource tcam utilization 0 
CAM Utilization for ASIC Instance [0]
 Table                                              Max Values        Used Values
 --------------------------------------------------------------------------------
 Unicast MAC addresses                              65536/512          18/21  
 IGMP and Multicast groups                          16384/1024          0/0   
 L2 Multicast groups                                16384/1024          0/0   
 Directly or indirectly connected routes            49152/65536          8/16  
 NAT/PAT SA address and Port                           0                 0
 QoS Access Control Entries                         18432                 0

 

Getting Started

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