08-11-2008 10:40 AM - edited 03-03-2019 11:06 PM
How I can aggregate tow serial interfaces
S1/0 & 1/1
I need the commands
08-11-2008 10:46 AM
You can use the "multi-link ppp" command.
Here is more info on that:
http://www.cisco.com/en/US/tech/tk713/tk507/technologies_configuration_example09186a00800a3b85.shtml
If helps, please rate post.
08-11-2008 11:04 AM
Ok thanks but I need to tell you my router have tow interfaces
S1/0 connected to ISP1
S1/1 connected to ISP2
ISP1 support us with 6MB
ISP2 support us with 8MB
I need to aggregate 6MB+8MB = 14 MB
And I have 1 ip in each Serial interface I can't use virtual template interface or Interface Dialer
Did you have anther solution?
08-11-2008 11:18 AM
Hello Ahmed,
in this case I would suggest to use load-balancing at layer 3 but Bandwidths are different on the two links.
You should use FR subifs 4 on link 1 and 3 on link 2, then increase the maximum-paths to 7 on your routing protocol (if possible)
Otherwise you should use EIGRP with variance for unequal load-balancing but I don't think you are using it with your providers
I don't think you can aggregate them.
What routing protocol do you use with your two providers ?
Hope to help
Giuseppe
08-11-2008 11:24 AM
Ok I will drown my network now and I will post it for you again
08-11-2008 12:34 PM
Sorry I am running dynamips to share what I will do this is not a rally configuration
________________________________________________________________
Rack1R2(config-subif)#do show run int f 0/0.1
Building configuration...
Current configuration : 194 bytes
!
interface FastEthernet0/0.1
encapsulation dot1Q 10
ip address 192.168.1.2 255.255.255.0
no snmp trap link-status
standby 1 ip 192.168.1.254
standby 1 priority 150
standby 1 preempt
Rack1R4(config-subif)#do show run int e 0/0.1
Building configuration...
Current configuration : 147 bytes
!
interface Ethernet0/0.1
encapsulation dot1Q 10
ip address 192.168.1.4 255.255.255.0
no snmp trap link-status
standby 1 ip 192.168.1.254
1 then I will configure anther 2 vlan like these steps
2 I will configure NAT
3 it's the critical point for me aggregation the link in tow serial interface in eche router
4 if you have complete configuration please post it for me
08-13-2008 06:17 AM
Hello Ahmed,
if you need to use NAT the best strategy is to use two pools one provided by ISP1 and one used by provider2.
At the routing level I would suggest to use the slower link as a backup.
hope to help
Giuseppe
08-14-2008 01:58 AM
Hello Ahmed,
I think this link can be useful for your scenario
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a00808d2b72.shtml
Hope to help
Giuseppe
08-11-2008 01:31 PM
please I need response about this configuration just I am use this to share what I will do in the network I am not share a task for study but I will make this configuration in real environment
08-11-2008 10:50 AM
Hello Ahmed,
the most common option is multilink PPP
you can follow this example:
int ser1/0
no ip address
enc ppp
ppp multilink 1
int ser1/1
no ip address
enc ppp
ppp multilink 1
interface multilink1
enc ppp
ppp multilink 1
ip address x.x.x.1 255.255.255.252
the configuration needs to be replicated on the other side's router using x.x.x.2 as the ip address.
use the following link as a reference
http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/mlppp_over_serial.html
Hope to help
Giuseppe
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