Saturday, February 27, 2010

Switching - some key points.

While starting troubleshooting, following commands make life easier,

logging synchronous
no exec-timeout
no ip domain-lookup

Never use vlan 1 for client traffic or management purpose.
VTP is essentially a replication protocol for VLAN data.
Etherchannels are L2 and L3. For L3 issue no switchport command in port channel.

int range x-y
 channel-group 1 mode on
show etherchannel
int port-channel1
 no switchport.

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