September
7
Fix Workstation Network Card Connectivity Delays When Connecting to Cisco Switch
Problem: A desktop computer takes nearly a minute to connect to a Cisco switch. The switch model is c3750e
- Spanning Tree Protocol (STP)
- EtherChannel negotiation
- Trunking negotiation
- Link speed/duplex negotiation between the switch and the workstation
These four features are listed in order of the delay they cause. STP causes the greatest delay and speed/duplex negotiation causes the least delay.
Solutions: Disable STP
Configuration
2900XL#configure terminal 2900XL(config)#interface g1/0/1 2900XL(config-if)#spanning-tree portfast 2900XL(config-if)#exit 2900XL(config)#exit 2900XL#copy run start