Default is-is configuration, Nonstop forwarding awareness – Dell POWEREDGE M1000E User Manual

Page 960

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38-68

Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide

OL-13270-03

Chapter 38 Configuring IP Unicast Routing

Configuring ISO CLNS Routing

Default IS-IS Configuration

Table 38-12

shows the default IS-IS configuration.

Nonstop Forwarding Awareness

The integrated IS-IS NSF Awareness feature is supported for IPv4, beginning with Cisco IOS
Release 12.2(25)SEG. 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.

Table 38-12

Default IS-IS Configuration

Feature

Default Setting

Ignore link-state PDU (LSP) errors

Enabled.

IS-IS type

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.

Default-information originate

Disabled.

Log IS-IS adjacency state changes.

Disabled.

LSP generation throttling timers

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.

LSP maximum lifetime (without a refresh)

1200 seconds (20 minutes) before t.he LSP packet is deleted.

LSP refresh interval

Send LSP refreshes every 900 seconds (15 minutes).

Maximum LSP packet size

1497 bytes.

NSF Awareness

1

1.

NSF = Nonstop Forwarding

Enabled

2

. Allows Layer 3 switches to continue forwarding packets from a

neighboring NSF-capable router during hardware or software changes.

2.

IS-IS NSF awareness is enabled for IPv4 on switches running Cisco IOS Release 12.2(25)SEG or later.

Partial route computation (PRC) throttling
timers

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.

Partition avoidance

Disabled.

Password

No area or domain password is defined, and authentication is disabled.

Set-overload-bit

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.

Shortest path first (SPF) throttling timers

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.

Summary-address

Disabled.

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