mbavisi
asked on
Multilink ppp Speed Problem
I have a problem when i do multilink ppp to bond 2 dsl lines.
One of the lines is a 2meg SDSL and the other line is a 0.5 meg IP stream ADSL.
the 2meg on its own , runs at 2meg speed when i do a line test, when i run a line test on the 0.5 meg ADSl, i get 0.5meg speed.
When when i run a line test when the 2 lines are part of MLP bundle, i get 1 meg speed.
It doesnt seen to make any sense, when i check the lines on the LNS, i can see they have formed an MPL bundle...so why do i get 1meg speed when the lines are combined as a bundle?
MY config on the cisco router is below.....
!
controller DSL 0/1/0
mode atm
line-term cpe
line-mode 2-wire line-zero
dsl-mode shdsl symmetric annex B
line-rate auto
!
!
!
interface FastEthernet0/0
ip address 192.168.16.1 255.255.255.240
ip nat inside
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface ATM0/0/0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface ATM0/1/0
no ip address
no atm ilmi-keepalive
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface Dialer0
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer persistent
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxxxxxxxxxxxxx
ppp chap password 0 test
ppp multilink
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
!
!
no ip http server
no ip http secure-server
ip nat inside source list 101 interface Dialer0 overload
!
access-list 101 permit ip 192.168.16.0 0.0.0.15 any
dialer-list 1 protocol ip permit
!
!
!
control-plane
!
!
!
ASKER
nice one pal, can you give me the details of how to set up eigrp to do unequal load sharing.
Many thanks
Many thanks
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Half the traffic goes onto link 1, half the traffic goes onto link 2.
At 500kbps on link 1 and 500kbps on link 2, the 500kbps link is full. You won't be able to exceed 1Mbps with this configuration.
For 2.5Mbps, assuming they are private lines and you operate the routers on both ends, you can do EIGRP routing over the links with variance of at least 4 to get unequal-cost load sharing, or you can get real fancy (with fancy hardware) and do MPLS Traffic Engineering, but that's way overkill for your application.