Help with load balancing 2 T1 between 2 routers

[loveroots]

Dear expert I will be setting up an office and will like your help with a sample config for load balance of 2 T1 PIP mpls CKT between 2 router. each router will have 1 T1 for a total bandwidth 2megs for office traffic.

 

[jeter]

turn on ip cef

ip load-sharing per packet on the serial interface.

insert two ip routes for each WAN
Example:
ip route 0.0.0.0 0.0.0.0 1.1.1.2
ip route 0.0.0.0 0.0.0.0 2.2.2.2


Go Army!
Tek-TIP Member 19,650

 

[Belushi]

I wouldn't reccomend static routing for this solution, but it would work. If you are running across a service provider's MPLS cloud you would be undoubtedly peering with their routers on either side. In such a case you may want to check and see if they offer the ability for ppp multilink or ppp multilink over frame-relay.

 

[loveroots]

Hi expert ISP do offer ppp multilink.I have only used it when multiple circuit is connecting to the same router. In my setup I need to have equipment redundancy on the core office can not go down, each router will have have one mpls t1 circuit. My routing protocol is ospf if possible a sample config will help greatly. sample of design is below.their will be 2 router uplinking into 2 asa5510, and 2 3560 uplinking into the 2 asa5510, and three other swt through out office which will all have a uplink to the 2 swt that is connected to the asa5510. how should I configure swt

t1 mpls=====rtr===asa5510===3560 swt ===3560====3560===3560
t1 mpls=====rtr===asa5510===3560 swt

 

[zizoudevinci]

this is a sample of a configuration i have made and working well, but i really didn't understand the topology of your network so i did as i could.
-----------------------------------

mpls traffic-eng tunnels
!
!


interface Loopback0
ip address 9.9.9.1 255.255.255.255
!
interface Tunnel1
ip unnumbered Loopback0
tunnel destination 9.9.9.2
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 2 2
tunnel mpls traffic-eng bandwidth 1544
tunnel mpls traffic-eng path-option 1 explicit name tunnel-isp1
no routing dynamic
!
interface Tunnel2
ip unnumbered Loopback0
tunnel destination 9.9.9.2
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 4 4
tunnel mpls traffic-eng bandwidth 1544
tunnel mpls traffic-eng path-option 1 explicit name tunnel-isp2
no routing dynamic
!
interface Serial1/0
ip address 1.1.1.1 255.255.255.0
ip load-sharing per-packet
encapsulation ppp
mpls label protocol both
mpls ip
mpls traffic-eng tunnels
serial restart-delay 0
ip rsvp bandwidth 1544 1544

interface Serial1/1
ip address 2.2.2.1 255.255.255.0
ip load-sharing per-packet
encapsulation ppp
mpls label protocol both
mpls ip
mpls traffic-eng tunnels
serial restart-delay 0
ip rsvp bandwidth 1544 1544
!
!
router ospf 10
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
!
!


ip explicit-path name tunnel-isp1 enable
next-address 1.1.1.2
next-address <next-hop>
next-address <next-hop>
next-address <next-hop>
next-address <destination>

!
ip explicit-path name tunnel-isp2 enable
next-address 2.2.2.2
next-address <next-hop>
next-address <next-hop>
next-address <next-hop>
next-address <destination>

-----------------------------
same thing have to be made from the other side of the links , inverting the paths and the loopback address

 

[loveroots]

Hi expert thanks for the config. basically the topology is setup so office does not go down.their are generator backup to building power and from the network side we will have two circuit from different ISP with two of each equipment on the core so their is hardward redundancy and circuit redundancy

 

[unclerico]

my first question would be, what is/are the gateway(s) for your LAN; the 3560 or the ASA??

I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)
- ColdFlame (vbscript forum)

 

[loveroots]

Hi expert if i will have vlan created on asa 5510 and that will be the gateway for the userlan
t1 mpls=====rtr===asa5510===3560 user lan swt ==3560
t1 mpls=====rtr===asa5510===3560 swt

not sure how to make this happen but your help is needed

 

[unclerico]

see, the problem is taht the ASA's don't do true load balancing. really the only way to get them to load balance would be to put them into multiple context mode and run them in an active/active failover cluster. a couple of other questions i have:
1) Do you really want load balancing or do you simply want a redundant link??
2) If you want true load balancing, do you have the ability to add any more devices to your design??
3) If you only want a failover link, would you be able to move the gateways for your VLANs to the 3560's or would you rather keep the gateways on the ASA's??

I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)
- ColdFlame (vbscript forum)

 

[loveroots]

Hi expert what I really want is redundancy. If moving gateway to 3560 would be the only option then I would be ok with looking at your recommendation. Do you have a quick design maybe

 

[burtsbees]

Between 2 routers, HSRP. In the same router, floating static routes.

http://www.ciscoblog.com/docstore/haiphsrp.pdf

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[burtsbees]

Here's a great example to load balance between two HSRP routers...

http://www.itsyourip.com/cisco/how-to-configure-hsrp-in-cisco-ios-routers/

I actually labbed this one time, and it works...lol

/



tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[unclerico]

as burt has alluded to, hsrp will be one of the key components of this design. you will be required to enable ip routing on the 3560's and make them the gateway for each of your vlans. two more questions taht I have:
1) is this network setup a private connection to another location or is it just to the Internet??
2) are your asa's terminating any vpns, site to site or remote access??

I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)
- ColdFlame (vbscript forum)

 

[burtsbees]

Uncle, how do you expect anyone to listen to what you have to say if you keeping ending your sentences and clauses with prepositions?lol

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!