why VPC is better than VSS?

[martlee2]

virtual port channel

why VPC is better than VSS?

any thing about VSS is better than VPC? if so, when to use VSS?

[Jon Marshall]

why VPC is better than VSS?

Who says it is ?

if so, when to use VSS?

When you have 4500, 6500 or 6800 switches.

It's not a question of which one is better than the other. It's all to do with what you need from your switches and where you are thinking of using them in terms of design.

Jon

[martlee2]

i just think if i have the latest switch , then use latest technology, VPC.

for example, if have N7K, use VPC.

how to think in terms of design?

and

will broadcast arp make down port of distribution layer switch when using port channel with core?

and

do VSS has this problem?

[Jon Marshall]

for example, if have N7K, use VPC.

Well yes because you can't use VSS with Nexus.

how to think in terms of design?

Don't really know what you are asking.

As for the arp question it seems completely unrelated to what you originally asked.

Try and focus on one question at a time and try and be clearer in what you are asking.

Jon