Hi together,
following scenarios, nearly the same, pure L2-Network
source is single attached, and destinations are behind a multichassis-etherchannel
Load-Balancing-algorithm is Source and Destination IP
assuming IP-address for Destination1 is odd and for Destination2 is even,
and source is generating two streams, one for each destination
Source-----[Switch1]------------------------ Link 1 ------------|
|
Stackwise (Etherchannel 1)----Destination1+Destination2
|
[Switch2]------------------------ Link 2 ------------|
Source-----[Switch1]------------------------ Link 1 ------------|
|
VSS (MEC Etherchannel 1)----Destination1+Destination2
|
[Switch2]------------------------ Link 2 ------------|
I assume
in the first scenario (3750 Stack) one stream is running via link 1 and one via link 2, correct)
in the second scenario (VSS) both streams are running via link 1, correct ?
that would mean that for such a scenario the load-distribution of the traffic accros the links is much better if building it up with 3750-stack than VSS ?
Next consideration to do the same with L3 in between. In this case I assume the load-ditribution will be the same for both scenarions done by ECMP, ist this assumption correct ?
L3
Source-----[Switch1]------------------------ Link 1 ------------|
|
Stackwise Layer3 (Etherchannel 1)-(L3 Router)---Destination1+Destination2
|
[Switch2]------------------------ Link 2 ------------|
L3
L3
Source-----[Switch1]------------------------ Link 1 ------------|
|
VSS Layer3 (MEC Etherchannel 1)-(L3 Router)---Destination1+Destination2
|
[Switch2]------------------------ Link 2 ------------|
L3
Thx in Advance
Hubert
