I'm bringing up a MLPPP PPPoA bundle with 4 7-meg DSL lines. It had worked
fine with only 2 lines in the bundle and provided the full expected speed.
Adding the next two lines didn't provide an increase in speed, it actually
might have decreased a bit. It tops out at around 10 megabits with 4 links
in the bundle.
The hardware on the customer side is a 3745 running 12.4(4)T1. It has 4
WIC-1ADSL's installed. The config on the ADSL interfaces are all
identical:
interface ATM0/0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
hold-queue 224 in
pvc 0/32
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
interface Dialer0
ip address negotiated
no ip proxy-arp
encapsulation ppp
dialer pool 1
dialer vpdn
dialer-group 1
ppp pap sent-username <removed>
ppp link reorders
ppp multilink
ppp multilink fragment disable
!
We've tried it with and without the reorders and fragment changes in the
config.
The server side is a 7206 with an NPE-G1. We're not topping out the
processor on either side during transfers.
The multilink bundle shows a lot of discards and reorders. This is after a
reset and downloading less than a gig of data on the client:
Virtual-Access3, bundle name is isprouter
Endpoint discriminator is isprouter
Bundle up for 01:15:43, total bandwidth 400000, load 1/255
Receive buffer limit 48768 bytes, frag timeout 1000 ms
Using relaxed lost fragment detection algorithm.
Dialer interface is Dialer0
0/0 fragments/bytes in reassembly list
242 lost fragments, 1237543 reordered
29169/15194784 discarded fragments/bytes, 16700 lost received
0x1F9178 received sequence, 0x6A517 sent sequence
Member links: 4 (max not set, min not set)
Vi4, since 01:15:43, unsequenced
PPPoATM link, ATM PVC 0/32 on ATM0/0
Packets in ATM PVC Holdq: 0, Particles in ATM PVC Tx Ring: 0
Vi6, since 01:15:43, unsequenced
PPPoATM link, ATM PVC 0/32 on ATM1/0
Packets in ATM PVC Holdq: 0, Particles in ATM PVC Tx Ring: 0
Vi5, since 01:15:43, unsequenced
PPPoATM link, ATM PVC 0/32 on ATM0/2
Packets in ATM PVC Holdq: 0, Particles in ATM PVC Tx Ring: 0
Vi2, since 01:15:43, unsequenced
PPPoATM link, ATM PVC 0/32 on ATM0/1
Packets in ATM PVC Holdq: 0, Particles in ATM PVC Tx Ring: 0
No inactive multilink interfaces
Any ideas to get this closer to 20+ megs?
THanks
dave
--
Dave Weis
[email protected]
http://www.internetsolver.com/
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