03-14-2007 05:57 AM - edited 03-03-2019 04:09 PM
Hello all,
I have two sight for internet traffic which are connected with two T1's. I configure them with multilink ppp so i should get a throughput of 3 Mbps correct? My snmp traffic graph is not showing a balanced load across the two T1's. Here are the router configs:
Router1:
interface Multilink1
ip address 69.X.X.X 255.255.255.252
no ip mroute-cache
no cdp enable
ppp multilink
multilink-group 1
!
interface FastEthernet0/0
ip address 69.X.X.X 255.255.255.252
no ip route-cache
no ip mroute-cache
speed auto
full-duplex
!
interface Serial0/0
no ip address
encapsulation ppp
no fair-queue
pulse-time 10
no cdp enable
ppp multilink
multilink-group 1
!
interface FastEthernet0/1
ip address 69.X.X.X 255.255.255.128
speed 100
full-duplex
!
interface Serial0/1
no ip address
encapsulation ppp
no fair-queue
pulse-time 10
ppp multilink
multilink-group 1
ip route 0.0.0.0 0.0.0.0 X.X.X.X
ip route 69.X.X.X 255.255.255.192 69.X.X.X
ip route 208.X.X.0 255.255.255.128 X.X.X.X
Router 2 (remote site):
!
controller T1 0/0
framing esf
clock source line primary
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/1
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
controller T1 1/0
shutdown
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
controller T1 1/1
shutdown
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
controller T1 1/2
shutdown
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
controller T1 1/3
shutdown
framing esf
clock source internal
linecode b8zs
channel-group 0 timeslots 1-24 speed 64
!
!
interface Multilink1
ip address 69.X.X.X 255.255.255.252
no ip mroute-cache
no cdp enable
ppp multilink
ppp multilink group 1
!
interface FastEthernet0/0
ip address 69.X.X.X 255.255.255.192
speed 10
half-duplex
!
interface Serial0/0:0
no ip address
encapsulation ppp
no fair-queue
pulse-time 10
ppp multilink
ppp multilink group 1
!
interface Serial0/1:0
no ip address
encapsulation ppp
no fair-queue
pulse-time 10
ppp multilink
ppp multilink group 1
!
interface Serial1/0:0
no ip address
shutdown
!
interface Serial1/1:0
no ip address
shutdown
!
interface Serial1/2:0
no ip address
shutdown
!
interface Serial1/3:0
no ip address
shutdown
ip route 0.0.0.0 0.0.0.0 69.X.X.X (Multilink IP address of router 1)
Can anyone tell me what I'm doing wrong?
Thanks,
03-14-2007 07:36 AM
Hi,
MLPPP makes sure that there is an equal packet distribution acorss the links.
By default the router does per destination load-balancing on the interfaces. If you want to do per-packet load-balancing, you can disable fast switching on the serial interfaces by using "no ip route-cache".
If you have CEF enabled on the router, you can also use CEF to do that load-blancing per packet. under the interface use " ip cef load-balncing per-packet".
Try the above to options listed above and see if it helps.
-amit singh
03-14-2007 07:41 AM
I am now seeing that the two circuits are balanced. However, I am not sure that I am getting the best throughput. Is there any way to test this? Thanks.
03-14-2007 07:56 AM
"I am now seeing that the two circuits are balanced",Please tell us the configuration you did. You can check it only in the reporting graphs or under the serial interface using " show interface" command and should show you almost equal traffic pattern.
-amit singh
03-14-2007 07:58 AM
The configuation is list above. When I do a speed test (speakeasy.net) I would expect to see at leat a 2 to 2.5 Mbps throughput, however the highest I have gotten was 1690 with very little usage on the two circuits.
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