Hello, Please could you clarify the expected behavior for the Maximum Response Time as defined in RFC 9251.
There seems to be a difference between the definition of the Maximum Response
Time in section 6.2 and section 9.3.1:
Section 6.2
1.
It computes the Maximum Response Time, which is the duration of
the (x,G) leave group synchronization procedure. This is the
product of two locally configured values, Last Member Query Count
and Last Member Query Interval (described in Section 3 of
[RFC2236]), plus a delta corresponding to the time it takes for a
BGP advertisement to propagate between the PEs attached to the
multihomed ES (delta is a consistently configured value on all
PEs attached to the multihomed ES).
4. It advertises an IGMP Leave Synch route for that (ES,BD). …
It also contains the maximum response time.
Section 9.3.1
Section 9.3.1 Constructing the Multicast Leave Synch Route defines the Maximum
Response Time as:
"The Maximum Response Time is the value to be used while sending a query, as
defined in [RFC2236]. “
RFC 2236 section 2.2 defines Max Response Time
“The maximum allowed time before sending a responding report in units of 1/10
second”
I am just wondering whether the Maximum Response Time sent in the Multicast
Leave Synch Route should contain the additional delta or not? Should the
initiating PE be running a longer timer than the PEs that receive the
Route-Type 8 message ?
Thank you kindly.
Best Regards,
Menachem Dodge
System Architect
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