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Network Speed

tkane
Level 1
Level 1

Hope I have the correct forum here.

We just had a Cisco VoIP install over Thanksgiving and since then our network speed has been horrible. Seems like we've gone back to 10Mbs. Before the install we had zero speed issues; we run f/e.

Switches are 3750/48 PoE w/2801 routers. CM is 3.3 w/Unity. All ports are set to auto speed/duplexing.

I know it's the switches because if I move a user from the 3750 to a separate switch the user goes back to the speed they're accustomed to (easily 5 - 10 faster). Everything indicates 100Mbs on the switch and user end when running through the phone or a separate wall jack. Don't know what's going on but it appears that the voice traffic is not the culprit.

Anyone seen this or have a solution?

Thanks.

2 Replies 2

thisisshanky
Level 11
Level 11

How many switches are in question. How are they connected ? What does a CPU util on the switch look like ? Do you have any loop topologies ?? Are they stacked ??

Can you try hard coding speed/duplex on a port and test..

a. PC through phone to switch and test connectivity

b. PC on a separate port on switch and test connectivity.

Revert back with results!!

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus

hiersd
Level 1
Level 1

The switch in the phones will link at 100 mbps or 1000 mbps. However, the throughput of the phone's switch seems to be undocumented.