03-25-2009 10:32 AM - edited 03-04-2019 04:05 AM
Hi all,
What happens if I install two routes like
ip route 1.1.1.0 255.255.255.0 2.2.2.2 track100
and
ip route 1.1.1.0 255.255.255.0 3.3.3.3 track 120
and if both tracks are in "UP" state ?
Is equal cost load balancing taken into account on Cisco router ?
Also I noticed that when I install two routes like
ip route 1.1.1.0 255.255.255.0 2.2.2.2 (without track)
and
ip route 1.1.1.0 255.255.255.0 2.2.2.2 track 123
which route is installed ? if tracking is up, do both routes get installed ?
Thanks in advance.
03-25-2009 11:26 AM
Hello Dumlu,
good question
documentation talks of a primary route (tracked) and a secondary route (floating and not tracked)
to be noted that you cannot specify an AD on a static route with track option enabled.
However, if you don't use local policy you probably can use both but it is something to be tested.
see
http://www.cisco.com/en/US/docs/ios/12_3/12_3x/12_3xe/feature/guide/dbackupx.html#wp1070516
Hope to help
Giuseppe
03-26-2009 12:03 AM
Hi Giuseppe,
Thanks for the answer but on a Cisco 3750 Ive just been able to add a static route both with an AD and a track ???
KRK-LAN-3750(config)#ip rou
KRK-LAN-3750(config)#ip route 1.1.1.0 ?
A.B.C.D Destination prefix mask
KRK-LAN-3750(config)#ip route 1.1.1.0 255.255.255.0 10.44.1.1 ?
<1-255> Distance metric for this route
name Specify name of the next hop
permanent permanent route
tag Set tag for this route
track Install route depending on tracked item
KRK-LAN-3750(config)#ip route 1.1.1.0 255.255.255.0 10.44.1.1 10 ?
name Specify name of the next hop
permanent permanent route
tag Set tag for this route
track Install route depending on tracked item
KRK-LAN-3750(config)#ip route 1.1.1.0 255.255.255.0 10.44.1.1 10 trak
KRK-LAN-3750(config)#ip route 1.1.1.0 255.255.255.0 10.44.1.1 10 trac
KRK-LAN-3750(config)#ip route 1.1.1.0 255.255.255.0 10.44.1.1 10 track 123
KRK-LAN-3750(config)#
KRK-LAN-3750(config)#
KRK-LAN-3750(config)#do show ip route static
1.0.0.0/24 is subnetted, 1 subnets
S 1.1.1.0 [10/0] via 10.44.1.1
195.87.29.0/32 is subnetted, 1 subnets
S 195.87.29.222 [1/0] via 10.44.1.1
81.0.0.0/29 is subnetted, 2 subnets
S 81.8.106.144 [1/0] via 81.8.106.154
195.87.78.0/29 is subnetted, 1 subnets
S 195.87.78.80 [1/0] via 10.44.1.1
198.18.1.0/32 is subnetted, 1 subnets
S 198.18.1.65 [1/0] via 10.44.1.1
KRK-LAN-3750(config)#do sh ver
Cisco IOS Software, C3750 Software (C3750-ADVIPSERVICESK9-M), Version 12.2(44)SE, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Sat 05-Jan-08 00:29 by weiliu
Image text-base: 0x00003000, data-base: 0x01800000
ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(25r)SEC, RELEASE SOFTWARE (fc4)
KRK-LAN-3750 uptime is 30 weeks, 6 days, 13 hours, 31 minutes
System returned to ROM by power-on
System image file is "flash:/c3750-advipservicesk9-mz.122-44.SE.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
cisco WS-C3750-24TS (PowerPC405) processor (revision L0) with 118784K/12280K bytes of memory.
Processor board ID CAT1037RHLM
Last reset from power-on
9 Virtual Ethernet interfaces
03-26-2009 02:24 AM
Hello Dumlu,
yes you have been able to set AD to 10 and to add a tracking option
A collegue of mine had tried to configure on a c2811
But I see it is possible on another c2811 we have in production
ip route 1.1.1.0 255.255.255.0 tunnel18 210 track ?
<1-500> tracked object number
or also as
ip route 1.1.1.0 255.255.255.0 tunnel18 track 100 ?
<1-255> Distance metric for this route
name Specify name of the next hop
tag Set tag for this route
System image file is "flash:c2800nm-adventerprisek9-mz.124-7a.bin"
So my note is wrong or release dependent
Thanks for your feedback this could open to the possibility of a multi-level hierarchy of tracked static routes.
Hope to help
Giuseppe
03-26-2009 02:33 AM
Hi again,
Well Guiseppe I am still just curious if it does load balancing in case both tracks are up :)
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