Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Redundancy with 3750

Hi,

I have some problems to link up 3750 with the following configuration.

In fact, i have 2 products generating Multicast flows (1 Main & 1 standby).

1 is connecting to 1 C3750 Main

1 is connecting to 1 C3750 Standby

Port 7 of the C3750 Main is connected to an optical switch (the main unit)

Port 8 of the C3750 Main is connected to another optical switch (the standby unit)

Port 7 of the C3750 Standby is connected to an optical switch (the standby unit)

Port 8 of the C3750 Standby is connected to another optical switch (the main unit)

The goal is to switch both optical switches in the same time, but i have 2 differents phenomenas. If i switch from the main to BU, both links are present.

If i switch from the BU to the main, 1 of both links is present and the other disappears.

1 REPLY
VIP Purple

Re: Redundancy with 3750

Hello,

your physical setup is two 3750 switches, of which both have a connection to two optical switches, one standby, and one main unit, which gives us a total of 4 optical switches ?

How are your 3750 switches connected ? And what is the brand/manufacturer of the optical switches ? I guess I am asking in order to find out how the spanning tree is working; switches usually mean spanning tree...

Is it possible to post the configurations of the 3750 switches ?

Regards,

GP

104
Views
0
Helpful
1
Replies