Btw, the other problem with “two RTs” scheme might be mobility. The leaf
MAC-VRF can’t see each others sequence numbers for a MAC. Please
see/consider my prior email. Need to address E-Tree for non-MPLS encaps
and in DC settings (think PVLAN).
Cheers,
Aldrin
On Thu, Dec 20, 2018 at 11:42 PM
Hi guys,
If we instead consider that the two-RTs scheme from operator point-of-view
is really a Root-only and Leaf-only MAC-VRF scheme (vs mixed root/leaf
MAC-VRF). Suppose all routes from a leaf VRF are marked with a “leaf
indication”. Suppose we use only one RT where leaf MAC-VRF rejects any
rou
Jorge,
Lots of thanks for a prompt response.
My conclusion js tbat the "two RTs" scheme should be used with special care in
E-tree solutions. This was not my impression from the first reading of 8317.
Since the "two RTs" scheme is very popular in hub-and-spoke" solutiobs for IP
VPN, the fact tha
Ali,
Lots of thanks for a prompt response.
I fully agree that tbe use case I've described can be addressed by the genegal
techniques of RFC 8317.
I only wanted to u dersrand applicability of fbe "two RTs" scheme, and both
Jorge and you confifm that it would result in undesirable behavior in this
ain View); Alexander Vainshtein; Ali
Sajassi (sajassi)
Cc: John E Drake (jdr...@juniper.net); Samer Salam (ssalam); ju1...@att.com;
sbout...@vmware.com; bess@ietf.org
Subject: Re: [bess] A question about RFC 8317
Sasha,
I would add only to Jorge’s response that in your topology below:
“PE3 would floo
Hi Sasha,
The use case that you have described below is a legitimate use case and if we
look at what happens in RFC 7432 baseline, there is no flooding there because
MAC addresses among multi-homing PEs get synch’d up and thus even a PE in the
all-active multi-homing group doesn’t receive a flo
rake (jdr...@juniper.net)" , "Samer Salam
(ssalam)" , "ju1...@att.com" ,
"sbout...@vmware.com" , "bess@ietf.org"
Subject: Re: [bess] A question about RFC 8317
Sasha,
I would add only to Jorge’s response that in your topology below:
“PE3 would flood anyt
tein , "Ali Sajassi
(sajassi)"
Cc: "John E Drake (jdr...@juniper.net)" , "Samer Salam
(ssalam)" , "ju1...@att.com" ,
"sbout...@vmware.com" , "bess@ietf.org"
Subject: Re: [bess] A question about RFC 8317
Hi Sasha,
What you are explaining i
Hi Sasha,
What you are explaining is correct.
PE3 would flood anything for which MAC DA is unknown to both local ESes. That
is normal behavior, only that in this case CE-1’s MAC will not be learned on
PE3 until CE-1 hashes the traffic to PE3 and not only PE2 (which will happen if
you have a de
