janasamit at wlink
May 2, 2010, 6:02 AM
Post #5 of 5
Basically, I am looking for MLX deployment for my small aggregations (in
terms of bandwidth and port density) in scenario where multiple L2 metro
rings terminates at one PoP and then enters in MPLS network and then to
Internet. For this either I need to have physical switches for each
ring or logically divide the one MLX. Basically I don't want mulitple
switches and routers in my one small PoP and want to do the job with one
Eg. I will be having 20Gig ports in an MLX, I want logically divide
the router into multiple virtual/logical router eg.
Port 1-3 will be used for VR1 (L2) where Port 1 and 2 will be part of
small L2 metro ring A running MSTP and dot1Q/Q-in-Q and Port 3 will
uplink/x connect to Port 7 which would be in VR3 running MPLS
Port 4-6 will be used for VR2 (L2) where Port 4 and 5 will be a part
small metro ring B running MSTP and dot1Q/Q-in-Q and Port 6 will
uplink/xconnect to Port 8 which would be in VR3 running MPLS.
Remaining ports from 7 to 20 will be use for VR3 (L3) which connects to
The communication between metro ring A and metro ring B would be via VR3
(L3) through MPLS by mapping to customer circutits for L2vpn to VPLS
between metro would be done based one Cvid or Svid.
May be I also want to have VR4 which will connect me to my upstream for
the Internet doing a Ebgp. I am confused whether the intercommunication
between muliple VRs (L2 and L3) can be without doing physical x-connect
between the VR and logically.
David Ball wrote:
> It kinda depends on what you're looking to achieve. VRFs and
> virtual routers are similar, but with slightly different setup
> requirements. For Juniper's version of logical-router though, there's
> a separate routing daemon started for each logical router (so if one
> crashes, the others aren't affected). Again, depends on what you're
> looking to to.
> On 29 April 2010 21:55, Samit <janasamit [at] wlink> wrote:
>> Umm..well Brocade engineer says that it is doable because you can assign
>> a physical port to the VRF therefore it can deliver the same
>> functionality like logical router . So, I just wanted to get expert
>> opinion and confirmation from this list.
>> Romain DEGEZ wrote:
>>> On Thursday 29 April 2010 12:12:01 Samit wrote:
>>>> Does MLX/XMR support both virtual and logical router like juniper does?
>>>> Is it possible to divide one mlx or xmr with 20Gig line card into 4
>>>> logical router with 5 ports in each router and do a physical cross
>>>> connect between each logical router? Any gotcha?
>>> No, to my knowledge there is no such feature in XMR/MLX ironware. Only VRF.
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