Just for anyone who arrives here in the future, see the
data field with the value of
128.1.0.0 dotted decimal which is equal to
0x80010000 hex when having a sham-link configured in Junos.
root@r2# run show ospf database instance 1 extensive
OSPF database, Area 0.0.0.0
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 100.100.100.1 100.100.100.1 0x80000002 312 0x22 0x55cf 36
bits 0x1, link count 1
id 100.100.100.2, data 128.1.0.0, Type PointToPoint (1) <<< ! Here
Topology count: 0, Default metric: 1
Topology default (ID 0)
Type: PointToPoint, Node ID: 100.100.100.2
Metric: 1, Bidirectional
Aging timer 00:54:48
Installed 00:05:09 ago, expires in 00:54:48
Last changed 00:05:14 ago, Change count: 1
Elvin
Original Message:
Sent: 08-06-2021 11:07
From: Unknown User
Subject: Juniper documentation question
thanks !!
Original Message:
Sent: 08-06-2021 04:45
From: Unknown User
Subject: Juniper documentation question
To access the link-data you need to expand the Router LSA with the extensive option and verify the Link Data field within the LSA. Any unnumbered interface in OSPF is assigned an index value, this is what that paragraph is referring to in the documentation and not to the Sequence value or the ID of the LSA headers.
Elvin
Original Message:
Sent: 06-19-2021 02:25
From: Unknown User
Subject: Juniper documentation question
I came across the following ;
"Verify that the router LSA originated by the instance carries the sham link adjacency as an unnumbered point-to-point link. The link data for sham links is a number ranging from 0x80010000 through 0x8001ffff."
user@PE1> show ospf database instance red OSPF database, Area 0.0.0.0 Type ID Adv Rtr Seq Age Opt Cksum Len Router 192.0.2.1 192.0.2.1 0x80000009 1803 0x22 0x6ec7 72Router 192.0.2.5 192.0.2.5 0x80000007 70 0x22 0x2746 72Router *198.51.100.2 198.51.100.2 0x80000006 55 0x22 0xda6b 60Router 198.51.100.4 198.51.100.4 0x80000005 63 0x22 0xb19 60Network 10.0.0.18 192.0.2.5 0x80000002 70 0x22 0x9a71 32 OSPF AS SCOPE link state database Type ID Adv Rtr Seq Age Opt Cksum Len Extern 198.51.100.2 198.51.100.4 0x80000002 72 0xa2 0x343 36Extern *198.51.100.4 198.51.100.2 0x80000002 71 0xa2 0xe263 36
Based on the line above, which sequence number indicates the link data for sham links ?
thanks !!