Monthly Archive: June 2019

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eBGP peering protection

eBGP peering protection if prefixes exceed 1000 then neighbor-ship will reset and after reach 75% will give warning IOS: router bgp 100 address-family ipv4 neighbor 100.3.0.1 maximum-prefix 1000 restart 3 address-family ipv6 neighbor 2001:100:3::1...

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FRR ISIS Cisco

ISIS FRR cisco IOS: router isis 109 net 49.0109.0000.0004.00 fast-reroute per-prefix level-2 all XR: interface GigabitEthernet0/0/0/0 fast-reroute per-prefix interface GigabitEthernet0/0/0/1 fast-reroute per-prefix

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BGP TTL Security

Cisco XR os: RP/0/0/CPU0:RTR#sh running-config router bgp […] router bgp 300 neighbor 19.3.0.1 remote-as 19 ttl-security […] Cisco IOS: RTR#sh running-config | s router bgp router bgp 300 […] neighbor 19.3.0.13 remote-as 19 neighbor...

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OSPF LFA Fast Reroute (FRR)

#OSPF #LFA #Fast Reroute(#FRR) Output: in this output we will found some route which indicates (!), it means backup path RP/0/0/CPU0:R6#show route 5.5.5.5 Thu Jun 6 16:26:59.983 UTC Routing entry for 5.5.5.5/32 Known via...

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IPV6 Address planning

For download IPV6 Address Planning Chart https://drive.google.com/drive/folders/1kJszlTvNlLLT3XEzekgETv5z28_WrC9D?usp=sharing 2001:0db8:0000:0000:0000:0000:0000:0000 |||| |||| |||| |||| |||| |||| |||| |||| |||| |||| |||| |||| |||| |||| |||| |||128 Single end-points and loopback |||| |||| |||| |||| |||| ||||...