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Does it LOOP? AND QoS on Cat

Sir,

Part:1: Cat4003 (v-6.3-3a)

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Q.1: LOOP using HUB???

I have PC (AUX VLAN=100 on the switch) connected to IP Phone (VLAN=99).

Same IP Phone is directly conencted to 10/100T Eth switch port on cat4003.

No Trunk between IP phone and Cat4003

No HUB:

PC <-----> IP Phone <-----> (power+data) MidSPAN (data) <---->Cat4003

MidSPAN is used for Power over Eth, HAs two ports in pair (1st for power+data that goes to the IP Phone and 2nd for data that goes to the cat4003). IP Phone is Avaya switch port type supports 2 VLanN, for voice and PC-data)

HUB:

PC<--->IPPhone<--->(power+data)MidSPAN(data)<--->HUB<--->Cat4003

Sniffer is conneted to HUB

Using PVST+ on Cat4003

As shown above if i connect Sniffer usign HUB

Is ther any chance of forming LOOP by putting HUB between MidSPAN and SW

Q.2: Does cat4003 w/ above version support L2QoS 802.1p Priority?

Part:2: Cat6509 (SUP-1) w/ (v-6.3-3a):

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Q.1: Does cat6509 passes the VLAN header on the SPAN port?

for example: I have host conneted to port 2/1 in VLAN=100 and sending VLAN header to cat6509. If i mirror port 2/1 to port 2/48 and connect sniffer to it. . Would i able to see VLAN 802.1p/Q header on sniffer?

If answer is YES, then i do not see that? Any additional config on cat6509?

Q.2: cat6509 SUP1 deos not support DSCP based QoS. BUT does it support 802.1p/Q based priority? If YES can i map that to extended ACL?

Thx

Kal

1 REPLY
New Member

Re: Does it LOOP? AND QoS on Cat

Kal,

As per this scenario, I do not see any chances of having loop if you place HUB in the setup. According to the following document, cat6509 SUP1 does support 802.1p/Q based priority and you can map that to extended ACL.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a008007fb2b.html#40967

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