Monthly Archives: October 2010

Junos sample BGP configuration

root> show configuration routing-options graceful-restart; ## To enable GR globally static { route 1.1.1.1/32 next-hop 10.2.2.2; } autonomous-system 65020 loops 2; ## Local router AS number and local router is allowed to see its AS number twice in AS path.

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BGP: From JUNOS

BGP: Uses TCP port number 179. Peer Type: External BGP session: Two BGP routers in different AS networks. TTL set to 1. Internal BGP session: Two routers in same AS networks. TTL value set to default 64. BGP states: Idle: … Continue reading

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IS-IS : From JUNOS

ISIS – From JUNOS Basic concepts and configuration: Intermediate system to Intermediate system (ISIS) was originally developed for Connectionless Network Protocol (CLNP) and later adapted to support IP. ISIS Levels: Level-2 and Level1. Two routers form Level-2 adjacency when the … Continue reading

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Junos sample ISIS Configuration

root@Juniper> show configuration protocols isis traceoptions { ## to store debug information to file “isis-test” file isis-test; flag all receive detail; ## debug on all isis received packets } export [ route-leak-L2-L1 summary-L1-L2 ]; ## export map for route leak … Continue reading

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Junos sample ospf configuration

root> show configuration protocols ospf ## shows current active configuration graceful-restart { ## graceful restart feature: default mode: Possible helper restart-duration 500; ## default: 180 sec. within which the neighbors should be formed notify-duration 1000; ## default: 30 sec. After … Continue reading

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OSPF-From JNCIS Study guide

Prefix advertised in the form of Link State Advertisement (LSA) Each LSA has common LSA Header. 20-octet format. Link state age: – 2 octet

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JUNOS in GNS3

Links Used http://blog.gns3.net/2009/10/olive-juniper/ http://sushantwagle.wordpress.com/2009/12/30/gns3-0-7rc1-supports-junos-lets-try-it-out-part-1/

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