From: Jason Guy (jguy) (jguy@cisco.com)
Date: Thu Oct 04 2007 - 16:46:06 ART
Cecil,
Next-hop-self just rewrites the next-hop attribute in the BGP update
packet to point to the router sending the update. This is used when the
real next hop address is unknown to the IGP.
By setting the next-hop attribute to the local router address, you are
basically saying to get to these prefixes, send your stuff my way. I
believe it is the address of the interface you are forming the neighbor
relationship from.
This is a classic link that explains a lot of the BGP stuff:
http://www.cisco.com/warp/public/459/bgp-toc.html#bgpnexthop
Jason
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Cecil Wilson
Sent: Thursday, October 04, 2007 2:32 PM
To: Joseph Brunner; ccielab@groupstudy.com
Subject: BGP next hop self
Hello GS
Can explain the next hop self command in BGP? Or any links that has
a good explanation of the command?
Thanks
Cecil G. Wilson
IT Network Services
Office: (901) 215-2710
Cell: (901) 601-6201
VoIP 104-2710
FLEX Logistics
cecil.wilson@flextronics.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joseph Brunner
Sent: Friday, August 24, 2007 7:02 PM
To: ccielab@groupstudy.com
Subject: what is in there...(ETHERTYPES)
"only what you take with you"
Rack13R4(config)#access-list 101 permit ip any any precedence ?
<0-7> Precedence value
critical Match packets with critical precedence (5)
flash Match packets with flash precedence (3)
flash-override Match packets with flash override precedence (4)
immediate Match packets with immediate precedence (2)
internet Match packets with internetwork control precedence (6)
network Match packets with network control precedence (7)
priority Match packets with priority precedence (1)
routine Match packets with routine precedence (0)
While this works great to remember IP PREC number to name (for those
annoying wred configs) can anyone give me a similar helpful way to find
out the ethertype of IP, ARP, PVST+, etc. from either capture/deny of
traffic on a router/switch, etc.
Thanks,
Joe
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