[Lsr] some doubt about RFC 5185 (Multi Area Adjacency)
meicong <meicong@huawei.com> Wed, 23 September 2020 06:27 UTC
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From: meicong <meicong@huawei.com>
To: "lsr@ietf.org" <lsr@ietf.org>
CC: "Jiangyu (China)" <china.jiangyu@huawei.com>
Thread-Topic: some doubt about RFC 5185 (Multi Area Adjacency)
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Date: Wed, 23 Sep 2020 06:27:12 +0000
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Subject: [Lsr] some doubt about RFC 5185 (Multi Area Adjacency)
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Hi ALL,
About rfc5185 OSPF Multi-Area Adjacency section 2.7 Advertising Multi-Area Adjacencies:
Link ID = Remote's Router ID
I have the following questions:
1、 I'm not sure whether “Neighbor's IP Address” means “local interface IP address” or “remote interface IP address”.
I have test cisco’s new version, it is set Link Data as local interface IP address.
2、If it is remote interface IP address， why not use local interface IP address, Any special considerations?
Thanks,
xxx
In section 2.7，
Link Data = Neighbor's IP Address
2.7. Advertising Multi-Area Adjacencies
Multi-area adjacencies are announced as point-to-point links. Once
the router's multi-area adjacency reaches the FULL state, it will be
added as a link type 1 to the Router Link State Advertisement (LSA)
with:
Link ID = Remote's Router ID
Link Data = Neighbor's IP Address or IfIndex (if the underlying
interface is unnumbered).
rfc5185 OSPF Multi-Area Adjacency
Authors' Addresses
Sina Mirtorabi
Nuova Systems
3 West Plumeria Drive
San Jose, CA 95134
USA
EMail: sina@nuovasystems.com<mailto:sina@nuovasystems.com>
Peter Psenak
Cisco Systems
Apollo Business Center
Mlynske nivy 43
821 09 Bratislava
Slovakia
EMail: ppsenak@cisco.com<mailto:ppsenak@cisco.com>
Acee Lindem (editor)
Redback Networks
102 Carric Bend Court
Cary, NC 27519
USA
EMail: acee@redback.com<mailto:acee@redback.com>
Anand Oswal
Redback Networks
300 Holger Way
San Jose, CA 95134
USA
EMail: aoswal@redback.com<mailto:aoswal@redback.com>