06-01-2006 01:16 AM - edited 03-03-2019 03:27 AM
HI
WHAT IS THE BENIFITS OF OF THE SUMMARY COMMAND IN EIGRP:
IP SUMMARY-ADDRESS EIGRP 1 10.10.0.0 255.255.0.0?WITH THIS COMMAND CAN I LIMIT ROUTE PROPOGATION.
10XS
ALI
06-01-2006 01:28 AM
Hi Ali,
EIGRP default go for auto summarisation but if you have disabled that you can configure manual summmarisation also with the command which you have mentioned.
Now once you do summarisation it will not filter the routes but it will only reduce the size of routing table by which I mean what all rouets comes into the summmarised address need not be seperately advertised and learned in routing table but one summary address will represent all the routes which it covers.
HTH, if yes please rate the post.
Ankur
06-01-2006 01:42 AM
10xs for ur reply!
if i have l3 link between the core and distribuion.can i use an etherchanel to bundel the 2 link.simple config betwen the dist and the core.with etherchanel.
06-01-2006 01:52 AM
Hi Ali,
Yes you can have l3 etherchannel between core and distribution switch.
You must manually create the port channel logical interface first
Cat6k# configure terminal
Cat6k(config)# interface port-channel 1
Cat6k(config-if)# ip address
Cat6k(config-if)# end
then put the Layer 3 LAN ports into the channel group
Cat6k(config)# interface type slot/port
Cat6k(config-if)#no ip address
Cat6k(config-if)#channel-group 1 mode {active | auto | desirable | on | passive}
This is just a sample config and if you want to go in detail of each command which I have mentioned here you can have a look at this simple link which will guide you step by step how to configure l3 etherchannels
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/12_1e/swconfig/channel.htm#wp1020478
HTH, if yes please rate all post.
Ankur
06-01-2006 01:55 AM
Hi Ali,
Yes you can have l3 etherchannel between core and distribution switch.
You must manually create the port channel logical interface first
Cat6k# configure terminal
Cat6k(config)# interface port-channel 1
Cat6k(config-if)# ip address
Cat6k(config-if)# end
then put the Layer 3 LAN ports into the channel group
Cat6k(config)# interface type slot/port
Cat6k(config-if)#no ip address
Cat6k(config-if)#channel-group 1 mode {active | auto | desirable | on | passive}
This is just a sample config and if you want to go in detail of each command which I have mentioned here you can have a look at this simple link which will guide you step by step how to configure l3 etherchannels
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/12_1e/swconfig/channel.htm#wp1020478
HTH, if yes please rate all post.
Ankur
06-01-2006 02:10 AM
HI ANKUR 10XS FOR UR REPLY!
WHAT ABOUT THE IP ADDRESS IN THE 2 SWITCH.WE DON'T NEED POINT TO PINT LINK BETWEEN THE 2 SW?
10XS
ALI
06-01-2006 02:52 AM
Hi Ali,
You need to configure the second switch also with same set of command with only difference in ip address.
As you told you already have a layer 3 link between core and distribution switches so you must be having some ip address assigned right? If yes just use the same ip address on the interface port channels and remove the ip address which you were having on the physical interfaces and then bind those physical interfaces with the logical port channel interface.
HTH, if yes please rate the post.
Ankur
06-01-2006 01:45 AM
hi ali,
its way to reduce the entry in routing table...
by using this command u will have single entry in routing table regarding to the networks of same subnets.
regards
Devang
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