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
