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====== TAC ======

==== INTERFACE PROBLEMS ====

<code>
#show agent logs
#show agent qtrace
#show interfaces transceiver detail
#show interfaces mac detail
#show interfaces phy detail
</code>

Scripted version:

<code bash>
#!/bin/bash
LOGNAME=logGrab-$HOSTNAME-$(date +%Y-%m-%d.%H%M%S)
mkdir /mnt/flash/$LOGNAME
cd /mnt/flash/$LOGNAME
FastCli -p15 -c "show tech" > ./show-tech
sudo cp /var/log/messages .
FastCli -p15 -c "show agent logs" > ./show-agent-logs
FastCli -p15 -c "show agent qt" > ./show-agent-qt
FastCli -p15 -c "show interfaces transceiver detail" > ./show-int-trans-det
FastCli -p15 -c "show interface mac detail" > ./show-int-mac-det
FastCli -p15 -c "show interface phy detail" > ./show-int-phy-det
cd /mnt/flash
zip -r $LOGNAME.zip $LOGNAME
rm -R $LOGNAME
</code>

==== TRACING ====

<code>
(config)#trace Bfd filename flash:Bfd.txt
(config)#trace Bfd enable BfdAgent all
#bash
$tail -f /mnt/flash/Bfd.txt
</code>

Disabling tracing:
<code>
(config)#no trace Bfd filename flash:/Bfd.txt
(config)#no trace Bfd enable * all // Disable traceing
</code>

==== MIRRORING TO CPU ====

<code>
monitor session ANALYZER source Ethernet1 rx
monitor session ANALYZER destination Cpu

# bash
$ tcpdump -i mirror0
</code>