Cisco 200 Learn Voice VLAN and CoS/DSCP from Catalyst 2960?

[mlechte]

How can I configure Cisco 200 (SG200-08P) to learn Voice VLAN and CoS/DSCP from upstreamCatalyst 2960?

The Cat 2960 is today used together with LLDP-MED to announce config to Aastra IP Telephones. In some cases I need to use a small switch inbetween and plan to use the Cisco SG200-08P for this. However, I would like to avoid manual config of the Cisco 200 switch.

[Tom Watts]

Hi Mlechte, I cheated on your question a bit. I have used two SG300-52 switches. I am able to accomplish what you're asking with these models.

On my master switch the configuration fundamental is simple. For argument sake, I disabled all CDP. I create vlan 100 for voice. Assigned my voice vlan 100. I enabled LLDP on every port. I enabled every optional TLV on every individual port.

I then connected a 100% factory default SG300-52 to the 'master switch'. After about 3 minutes the VSDP created the voice vlan, the link between switches became 1u, 100t. The vlan database populated the vlan 100 and everything just worked nicely.

So, to answer your inquiry, if your 2960 supports the same TLVs it should work okay.

I do recommend you use the SX300 series, it is a much more robust switch, supports full CLI and has a lot better feature set. A SG300-08 (srw2008-k9-na) is around $250. The SG200-08 is about a $100 cheaper. The difference between models is astronomical and a much better investment.

Please review

console_log_master  <--This is the switch that will advertise to the downstream

console_log_receive <-- This is a default switch that received the LLDP information

-Tom
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[mlechte]

Thanks for your respons. So far I know, the Cat 2960 doesn't support VSDP. Should it be possible to achieve the same using LLDP or CDP?

[Tom Watts]

Mlechte, yes I have made this work with 2960 with SX300 using this document

http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_55_se/configuration/guide/swlldp.html

I will post my configs in a sec

Edited post to upload the show run from my 2960. This updated my SX300 series without issues.

-Tom
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Message was edited by: Thomas Watts