10-14-2008 06:36 AM - last edited on 03-25-2019 03:20 PM by ciscomoderator
1. Please does keep alife work on physical inteface. I have two links to branch router, I notice if I pass the static routes through physical interface,the links wont fail over,but if I use tunnel,they will.
2.what command can i use to know when last a router was modified.
3. Will GLBP work on links from two service providers on a single route.
4.can i do load balancing without running dynamic routing.
10-14-2008 09:45 AM
Hi Just,
1. Yes, on physical interfaces you can configure keepalive with the "keepalive" command (how interesting:).
Please check if your interfaces are configured with the "no keepalive" commands.
2. "show running-config" will show you the date when the config was last modified in one of its first rows of output.
3. GLBP is designed for load balancing. It will load balance traffic from the hosts to the default gateways and traffic on the ISP facing interfaces, if 2 (or more) routers connect to different ISPs for example.
GLBP will not do load balancing on a single router when this router is connected to 2 different ISPs, or even with 2 links to the same branch router.
4. Yes, GLBP should work when static routes are configured on the routers.
Cheers:
Istvan
10-14-2008 10:00 AM
Thanks so much, but i am having problems.
1. i cant see the time the last config was done fron show run.
2.you dont get my number 4 question,what i am saying is can i make traffic pass though two ISP when i am using static routing.
10-14-2008 10:01 AM
Check this feature out.
http://www.cisco.com/en/US/docs/ios/12_3/12_3x/12_3xe/feature/guide/dbackupx.html
You can do load-balancing with just static routes. I am assuming that your using cef switching. By default, cef does per-destination load balancing over equal paths.
On my router I did the following:
ip route 1.1.1.1 255.255.255.255 null0
ip route 1.1.1.2 255.255.255.255 null0
ip route 222.2.2.0 255.255.255.0 1.1.1.1
ip route 222.2.2.0 255.255.255.0 1.1.1.2
Rack1R1#sh ip route
1.0.0.0/32 is subnetted, 2 subnets
S 1.1.1.1 is directly connected, Null0
S 1.1.1.2 is directly connected, Null0
222.2.2.0/32 is subnetted, 1 subnets
S 222.2.2.0 [1/0] via 1.1.1.2
[1/0] via 1.1.1.1
Rack1R1#
Rack1R1#sh ip cef 222.2.2.0 detail
222.2.2.0/24, epoch 0, per-destination sharing
recursive via 1.1.1.1
attached to Null0
recursive via 1.1.1.2
attached to Null0
Rack1R1#
10-14-2008 10:09 AM
You have to set the clock first. Then the timestamps will show up.
Would you like to enter the initial configuration dialog? [yes/no]:
% Please answer 'yes' or 'no'.
Would you like to enter the initial configuration dialog? [yes/no]: no
Press RETURN to get started!
Router>
Router>
Router>
Router>en
Router#sh run
Building configuration...
Current configuration : 667 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
Router#sh clock
*00:11:02.766 UTC Fri Mar 1 2002
Router#clock set 13:22:00 14 Oct 2008
Router#wr mem
*Oct 14 13:22:00.000: %SYS-6-CLOCKUPDATE: System clock has been updated from 00:11:18 UTC Fri Mar 1 2002 to 13:22:00 UTC Tue Oct 14 2008, configured from console by console.
Building configuration...
[OK]
Router#sh run
Building configuration...
Current configuration : 774 bytes
!
! No configuration change since last restart
! NVRAM config last updated at 13:22:01 UTC Tue Oct 14 2008
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 15
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
Oct 14 13:22:16.871: %C2600-4-SMARTINITDISABLE: Warning! You have disabled SMART INIT
and manually configured the amount of IO memory allocated. This is HIGHLY
discouraged on the Cisco 2600XM Series platforms as it may deprive the
system of memory necessary for normal operation. It is highly recommended
that SMART INIT not be disabled to ensure proper router operation.
Router#
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