... is the hostname (the name of the router) followed by the
“Ͼ” sign. In JUNOS you also see the username followed by the “@” sign before the
hostname. Now you can issue commands to the router. The ... one of the duties of the routing protocols to report that a
certain sub-net is unreachable. The routing protocols propagate this change and all routers
along the path...
... shows the structure of the IS-IS common header, which starts every IS-IS
message. The 8-bit PDU type field indicates the type of message that is carried inside the
IS-IS message. On the right of the ... 107
1921.6820.4003.02-00
System-ID
Pseudonod
e-
ID
Fragment-
ID
F
IGURE 4.24. The LSP-ID uniquely identifies an IS-IS router announcement – the first 6 bytes
represent...