Cisco Catalyst 2960S IP Telephony configuration

[net buzz]

Hi!!

I have configured a Cisco Catalyst 2960S switch for both Desktop and Voice VLANs using the Cisco Network Assistant.

The configuration is as follows:

Access VLAN: 192

Voice VLAN: 100

The configuration is working out fine but there are issues when there is a replication operation between servers A and B on the Access VLAN 192.

Servers A and B are attached to switch ports configured to be on VLAN 192 only (GigabitEthernet 1/0/23 and GigabitEthernet 1/0/24)

The replication between the two servers takes a lot of time to complete and sometimes terminates.

I have tested the replication between the same two servers on a normal switch with blank configuration and it completes successfully.

Though switch ports GigabitEthernet 1/0/20 - GigabitEthernet 1/0/24 are configured for VLAN 192 only, an IP Phone connected to these ports works the same as when connected to the remaining switch ports configured for both Access + Voice VLANs.

Please note that the IP Phones are not Cisco phones.

Please see the attached switch configuration.

Regards,

Alvin

[acampbell · Accepted solution]

Hi,

Can you add this to the config

!

int range g1/0/23 - 24

switchport host

!

Can you also confirm what the server NIC cards are set up for re

speed & duplex

Regards

Alex

[net buzz]

Hi,

There was a duplex mismatch with the server NIC.

This has been changed and the replication is now working our fine.

Regards,

Alvin