Cisco IS-IS

Intermediate System-to-Intermediate System

Type: Link State

Algorithm: Dijkstra

AD: 115

Protocols: IP, CLNS

OBS Interface MTU måste matcha för grannskap

NET

Network Entity Title, formatet är AFI.DSP.SystemID.NSEL:

• AFI = 49
• DSP(Area ID) = 0001
• SystemID = Räknas fram baserat på Loopback adressen
• NSEL = 00

IOS

router isis 1
is-type level-2
metric-style wide
passive-interface default
no passive-interface te0/1/1
log-adjacency-changes
address-family ipv4 unicast
exit
net 49.0001.0001.0001.0001.0001.00

Fast convergence

lsp-gen-interval 5 50 50
prc-interval 5 50 50
spf-interval 5 50 50

Authentication

authentication mode md5 
authentication key-chain <key-chain-name>

Vänta med att använda en granne som nyss har bootat.

set-overload-bit on-startup 180

Enablea interface

interface te0/1/1
ip router isis 1
no isis hello padding
isis network point-to-point #effektivisera LSP-hantering
isis authentication mode md5
isis authentication key-chain <key-chain-name>
no shut

BFD

BFD hjälper routing protokoll att konvergera snabbare.

int te0/1/1
bfd interval 50 min_rx 50 multiplier 5
isis bfd

NX-OS

feature isis

router isis IS
is-type level-2
passive-interface default level-1-2
log-adjacency-changes
address-family ipv4 unicast
exit
net 49.0001.0001.0001.0001.0002.00

Fast convergence

spf-interval level-2 5000 50 50
lsp-gen-interval level-2 5000 50 50

Authentication

authentication-type md5 level-2
authentication key-chain <key-chain-name> level-2

Vänta med att använda en granne som nyss har bootat.

set-overload-bit on-startup 180

Interface

int lo0
ip router isis IS

interface e1/1
ip router isis IS
no isis passive-interface level-2
no isis hello-padding
isis network point-to-point #effektivisera LSP-hantering
isis authentication-type md5 level-2
isis authentication key-chain <key-chain-name> level-2

BFD

BFD hjälper routing protokoll att konvergera snabbare.

feature bfd
int e1/1
bfd interval 50 min_rx 50 multiplier 3
no bfd echo
bfd per-link
isis bfd

Show

show isis
show isis neighbors/adjacency
show isis topology