Muthu,
Quoting from Section 3 of
7432bis<https://datatracker.ietf.org/doc/html/draft-ietf-bess-rfc7432bis-02#section-3>:
Ethernet Tag: Used to represent a BD that is configured on a given
ES for the purposes of DF election and <EVI, BD> identification
for frames received from the CE. Note that any of the following
may be used to represent a BD: VIDs (including Q-in-Q tags),
configured IDs, VNIs (Virtual Extensible Local Area Network
(VXLAN) Network Identifiers), normalized VIDs, I-SIDs (Service
Instance Identifiers), etc., as long as the representation of the
BDs is configured consistently across the multihomed PEs attached
to that ES.
As I see it, using manually configured IDs can address your concerns.
Regards,
Sasha
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From: BESS <[email protected]> On Behalf Of Muthu Arul Mozhi Perumal
Sent: Tuesday, February 15, 2022 1:23 PM
To: [email protected]
Subject: [EXTERNAL] [bess] EVPN service carving with ingress VLAN translation
Hi,
Though rfc7432bis recommends VLAN translation to be performed at the
disposition PE (for VLAN-based and VLAN-aware bundle services), I believe there
are existing deployments where VLAN translation is performed at the ingress PE.
In this scenario, is there any guideline on whether service carving is to be
performed based on the original VLAN or translated VLAN?
I think this cannot be left implementation specific, since DF election is a
distributed algorithm and should yield the same result in all PEs that are part
of the multi-homed group.
Any feedback would be helpful..
Regards,
Muthu
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