Cisco Catalyst 4500 Series, Руководство по настройке программного обеспечения, Страница: 1767 / 2086

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 68 Configuring Wireshark
VSS Specific Examples
Connecting to standby virtual console
Type "exit" or "quit" to end this session
vss_dut1-standby-console# monitor capture mycap stop
Capture mycap is not activefl already stopped: so ignore
Unable to deactivate Capture
vss_dut1-standby-console# no monitor capture mycap
vss_dut1-standby-console# exit
These steps match those when the attachments points are in both VSS active and standby switches.
Example: Circular Buffer Usage (Attachment Point in VSS Standby Switch)
This example shows how to do a simple capture and store operation with display option when the
attachment point is in VSS standby switch:
Step 1
Prepare the capture session by entering the following commands in VSS active switch:
vss_dut1# monitor capture mycap interface gi 2/1/1 in
vss_dut1# monitor capture mycap match ipv4 any any
vss_dut1#
monitor capture mycap buffer size 1 circular
vss_dut1# monitor capture mycap limit packets 10
Step 2 Identify the module number for the standby switch and login to the switch (in this case, the module
number for the standby switch is 14). Prepare the capture session in VSS standby switch similar to the
VSS active switch and start the capture session.
vss_dut1# remote login module 14
Connecting to standby virtual console
Type "exit" or "quit" to end this session
vss_dut1-standby-console# monitor capture mycap interface GigabitEthernet2/1/1 in
vss_dut1-standby-console# monitor capture mycap match ipv4 any any
vss_dut1-standby-console# monitor capture mycap buffer size 1 circular
vss_dut1-standby-console# monitor capture mycap limit packets 10
vss_dut1-standby-console# monitor capture mycap start
vss_dut1-standby-console# exit
Step 3
Start the session in VSS active switch. Periodically, check that the packets are stored in the capture file.
vss_dut1# monitor capture mycap start
vss_dut1#
show monitor capture mycap buffer
0.000000 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] 0 > 0 [<None>] Seq=1 Win=0
Len=6
0.497035 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
0.997009 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
1.497035 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
1.997009 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
2.497035 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
2.997009 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
3.507029 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6
3.997009 20.1.1.2 -> 30.1.1.2 TCP [TCP ZeroWindow] [TCP Retransmission] 0 > 0
[<None>] Seq=1 Win=0 Len=6