Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

GLBP

HI EXPERTS!

If we 2 routers runing GLBP for wan redundancy.this is the config for the 1st active router:

ACTIVE-ROUTER 1

***************

interface fastethernet 0/0

ip address 10.10.100.2 255.255.255.0

glbp 10 ip 10.10.100.1

glbp 10 forwarder preempt delay minimum 60

glbp 10 load-balancing host-dependent

glbp 10 preempt delay minimum 60

glbp 10 priority 254

glbp 10 timers 5 18

glbp 10 timers redirect 600 7200

glbp 10 weighting 110 lower 95 upper 105

glbp 10 weighting track 2 decrement 5

!

track 2 interface f0/1 ip routing

waht could be the config for the Standby router(ROUTER 2) based on the first input?

STANDBY-ROUTER 2

??????????????

8 REPLIES
Hall of Fame Super Blue

Re: GLBP

Hi Ali

First i think you need to make a change to your active router config.

i think you probably want to change

track 2 interface f0/1 ip routing to

track 2 interface f0/1 line-protocol

You also need to adjust your weightings. If f0/1 goes down it will not switch because you are only taking 5 off the weighting and this does not take it below 95.

So change

glbp 10 weighting track 2 decrement 5 to

glbp 10 weighting track 2 decrement 20

110 - 20 = 90 which is less than your lower threshold of 95.

For the other router

interface fastethernet 0/0

ip address 10.10.100.3 255.255.255.0

glbp 10 ip 10.10.100.1

glbp 10 load-balancing host-dependent

glbp 10 priority 100

glbp 10 timers 5 18

glbp 10 timers redirect 600 7200

glbp 10 weighting 110 lower 95 upper 105

glbp 10 weighting track 2 decrement 20

!

track 2 interface f0/1 line-protocol

I hope this works -please let me know if you have any problems.

Jon

New Member

Re: GLBP

HI Jon

10xs for ur great Help;y always help me in this Forum

thanks

New Member

Re: GLBP

HI

Do i need default/static route to the outside interface;all device on the same vlan

10xs

New Member

Re: GLBP

HI JON!

SO THE FINAL CONFIG AFTER UR CHANGE COULD BE LIKE THIS:

ACTIVE-ROUTER 1{AVG}

********************

interface fastethernet 0/0 ip address 10.10.100.2 255.255.255.0

glbp 10 ip 10.10.100.1

glbp 10 forwarder preempt delay minimum 60

glbp 10 load-balancing host-dependent

glbp 10 preempt delay minimum 60

glbp 10 priority 254

glbp 10 timers 5 18

glbp 10 timers redirect 600 7200

glbp 10 weighting 110 lower 95 upper 105

glbp 10 weighting track 2 decrement 20

!

track 2 interface f0/1 line-protocol

!

STANDBY-ROUTER 2{AVF}

*********************

interface fastethernet 0/0

ip address 10.10.100.3 255.255.255.0

glbp 10 ip 10.10.100.1

glbp 10 load-balancing host-dependent

glbp 10 priority 100

glbp 10 timers 5 18

glbp 10 timers redirect 600 7200

glbp 10 weighting 110 lower 95 upper 105

glbp 10 weighting track 2 decrement 20

!

track 2 interface f0/1 line-protocol

!

ANY COMMENTS?

10XS

Hall of Fame Super Blue

Re: GLBP

Hi Ali

You would need a default route on R1 & R2 pointing to the releavant ISP wireless address but your clients will be fine.

Jon

New Member

Re: GLBP

HI Jon

Like this:

R1

ip route 0.0.0.0 0.0.0.0 f0/1(ISPA:202.10.10.1}

R2

ip route 0.0.0.0 0.0.0.0 f0/1(ISPB:194.126.10.10.1}

any comments?

10xs

Hall of Fame Super Blue

Re: GLBP

Hi Ali

If the links are P2P links then you can use either interfaces or ip addresses as next hop. if not then use IP addresses.

As for Glbp config - looks fine to me. You might want to add a "glb 10 preempt ..." command on R2 but it won't make any difference really as it has a lower priority anyway.

Let me know how it goes

Jon

New Member

Re: GLBP

HI JON!

10XS for ur Help in this Topic..

Regards

ALI

195
Views
15
Helpful
8
Replies