Cisco IE-4000 Software Configuration Manual page 876

Configuring IP Unicast Routing
Configuring ISO CLNS Routing
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Configuring IS-IS Interface Parameters, page 879
Default IS-IS Configuration
Feature
Ignore link-state PDU (LSP) errors
IS-IS type
Default-information originate
Log IS-IS adjacency state changes.
LSP generation throttling timers
LSP maximum lifetime (without a refresh)
LSP refresh interval
Maximum LSP packet size
1
NSF Awareness
Partial route computation (PRC) throttling
timers
Partition avoidance
Password
Set-overload-bit
Shortest path first (SPF) throttling timers
Summary-address
1. NSF = Nonstop Forwarding
2. IS-IS NSF awareness is enabled for IPv4 on switches running the IP services image.
Nonstop Forwarding Awareness
The integrated IS-IS NSF Awareness feature is supported for IPv4 in the IP services image. The feature allows customer
premises equipment (CPE) routers that are NSF-aware to help NSF-capable routers perform nonstop forwarding of
packets. The local router is not necessarily performing NSF, but its awareness of NSF allows the integrity and accuracy
of the routing database and link-state database on the neighboring NSF-capable router to be maintained during the
switchover process.
Default Setting
Enabled.
Conventional IS-IS: the router acts as both a Level 1 (station) and a Level
2 (area) router.
Multiarea IS-IS: the first instance of the IS-IS routing process is a Level
1-2 router. Remaining instances are Level 1 routers.
Disabled.
Disabled.
Maximum interval between two consecutive occurrences: 5 seconds.
Initial LSP generation delay: 50 ms.
Hold time between the first and second LSP generation: 5000 ms.
1200 seconds (20 minutes) before the LSP packet is deleted.
Send LSP refreshes every 900 seconds (15 minutes).
1497 bytes.
2
Enabled . Allows Layer 3 switches to continue forwarding packets from a
neighboring NSF-capable router during hardware or software changes.
Maximum PRC wait interval: 5 seconds.
Initial PRC calculation delay after a topology change: 2000 ms.
Hold time between the first and second PRC calculation: 5000 ms.
Disabled.
No area or domain password is defined, and authentication is disabled.
Disabled. When enabled, if no arguments are entered, the overload bit is
set immediately and remains set until you enter the no set-overload-bit
command.
Maximum interval between consecutive SFPs: 10 seconds.
Initial SFP calculation after a topology change: 5500 ms.
Holdtime between the first and second SFP calculation: 5500 ms.
Disabled.
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