Can someone please help in the below scenario?
We are looking to pass some traffic from one site (C) to other (A) transiting through another site (B). The three site are going to be connected in the following way:
Site C ==>> Site B (cisco 3560 - SFP + X2 module) == >> Site A (cisco 6509 - XENPAK module)
(4 x 1GE) (4 x 1GE + 1 x 10GE) (1 x 10GE)
Cisco 3560 at Site B will have four 1 GE links from Site C plugged to it as well as one 10 GE link to Site A. About 2-3 Gbps of traffic will be coming from Site C and switched over to Site A by this switch at site B and there is no routing involved. I will just configure access vlans for each 1 GE link and trunk them across through the 10 GE link.
Now, the traffic on 10 GE link will be traveling faster as compared to 1 GE links and my concern here is some traffic will be dropped as a result. I believe traffic will be buffered when traveling from 10 GE to 1 GE but any excess traffic will just be dropped as it can't travel at the same rate.
1. Can someone please advise if this is going to be an issue with the amount of traffic we are talking about? If yes, then what measures can we take to avoid this situation?
2. Can we possibly do some shaping/rate-limiting and slow down the traffic coming from 10 GE and how?
Any help will be much appreciated.