EIGRP

[alsayed]

Hi!

i have a couple of questions!

1)if we have 4 link, the first 3 is gig and the 4 one running on the gig interface, but the actual speed is 300M?

2)can i run Multilink bundle on this 4 Links(1 of the 4 in different speed 300M But running on the gig interface)?

3)how can i do load balence & redundancy for this 4 link?

4)do i need to do l3 etherchannel(L3) for the first 3 link,and the 4 link(300M) for backup?

5)i want to use EIGRP AS ROUTING PROTOCOL,How EIGRP Will work for this situation?

plz waiting ur kind reply...

[alsayed]

hi the config for my Setup is here:

SW1-SUP720

**********

interface GigabitEthernet2/1

description "L3 Point-To-Point Leaser-link to SW2-SUP2""

no ip address

channel-group 14 mode on

!

interface GigabitEthernet2/2

description "L3 Point-To-Point Leaser-link to SW2-SUP2"

no ip address

channel-group 14 mode on

!

interface GigabitEthernet2/3

description "L3 Point-To-Point Leaser-link to SW2-SUP2""

no ip address

channel-group 14 mode on

!

interface Port-channel14

ip address 192.168.1.1 255.255.255.252

!

interface GigabitEthernet3/1

description "L3 wirless link to SW2-SUP2"

ip address 192.168.1.4 255.255.255.252

!

router eigrp 1

network 192.168.1.0 0.0.0.3

no auto-summary

.............................................................

SW2-SUP2

********

interface GigabitEthernet2/1

description "L3 Point-To-Point Leaser-link to SW1-SUP720""

no ip address

channel-group 14 mode on

!

interface GigabitEthernet2/2

description "L3 Point-To-Point Leaser-link to SW1-SUP720

no ip address

channel-group 14 mode on

!

interface GigabitEthernet2/3

description "L3 Point-To-Point Leaser-link to SW1-SUP720""

no ip address

channel-group 14 mode on

!

interface Port-channel14

ip address 192.168.1.2 255.255.255.252

!

interface GigabitEthernet3/1

description "L3 wirless link to SW1-SUP720"

ip address 192.168.1.5 255.255.255.252

!

router eigrp 1

network 192.168.1.0 0.0.0.3

no auto-summary

10xs

[royalblues]

use the bandwidth & delay command under the interface conencting to the wireless link.

you can check the FD of the etherchannel route through sh ip eigrp topology

if you can post the output of the above command it would be easier to suggest

Narayan

[alsayed]

Narayan 10xs 10xs for ur reply!

1)if i add the Bandwidth 300000 & delay under the interface,my config its work?

2)how can i configure the Delay that met my situation?

10xs

[royalblues]

if it works as desired then you do not need to configure the delay. These are the 2 parameters generally used to influence EIGRP metric.

It is not mandatory to use both of them :-)

BTW it is configured under the interface

int g 3/1

delay 2000

note: - delay is measured in tens of microseconds

Narayan

[alsayed]

Hi

1)what did u calcule for to acheive this?"delay 2000"

2)what about my config!it works or not?

10xs for ur time to help me

[royalblues]

Ali,

2000 was used just as an example.

Please go through this link to understand EIGRP metric calculation

http://www.cisco.com/warp/public/103/eigrp-toc.html#eigrpmetrics

Narayan

[alsayed]

10xs for ur reply

but what about my config?it works?

[royalblues]

Post the output of show ip EIGRP topology

[sundar.palaniappan]

IP addressing is incorrect on wireless link and you don't have EIGRP enabled on that interface. Configure the following;

interface GigabitEthernet3/1

description "L3 wirless link to SW2-SUP2"

ip address 192.168.1.5 255.255.255.252

router eigrp 1

network 192.168.1.5 0.0.0.0

SW2-SUP2:

interface GigabitEthernet3/1

description "L3 wirless link to SW1-SUP720"

ip address 192.168.1.6 255.255.255.252

!

router eigrp 1

network 192.168.1.6 0.0.0.0

HTH

Sundar

[alsayed]

hi royalblues!

10xs for ur reply!the setup still on the Peapar;i want to ghather all required info before the Tuning!but the Scenario & the prevuious diagrams & config shoud run on the 2 6509

10xs

[royalblues]

Ali,

Just mention the bandwidth under the wireless link as 300000. This will ensure that it does not become the successor.

Once this is done, do a sh ip eigrp topology and see whether the wireless route comes up as FS in the table. Then you can start tuning these values till it appears in the topology as a FS.

And as Sundar has posted please ensure EIGRP is running on this interface.

Note: - Even if the link is not a FS, eigrp will route the traffic over this link. It only does a local computation (by sending queries to the neighbor).

This process does not take place if the route is installed as a FS.

Another way is to add a floating static route with an AD greater than 90 using the wireless link. This route will be installed once the EIGRP route fails.

HTH

Narayan

[alsayed]

HI!

We dont need Static route;we only need EIGRP AS ROUTING PROTOCOLE.

ANY COMMENTS

10XS FOR UR TIME TO HELP ME!!

[alsayed]

Hi

does EIGRP Send traffic also over the wirless even if the entire channel still up and working?or the wirless comes up when the L3 ethechannel down?

10xs for ur help!!!

[Jon Marshall]

Hi

Eigrp will not send traffic over the wireless link until the L3 etherchannel goes down. When the layer 3 etherchannel goes down the route will be removed from the routing table.

EIGRP will then use the wireless link as an alternative route.

If you wanted to send traffic over both links you would need to use the variance command.

Jon

[alsayed]

Hi Jon!

10xs for ur reply!so what the variance cpild be in my situation?

10xs