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Replies

Bonding Two T1s with a 3620

jbrunsting
Level 1
Level 1

I am attempting to bond a couple of T1s into a single pipe for the network. It's supported by the ISP (SpeakEasy), but they won't support a config on a router they don't provide. As far as I know, this SHOULD be working, but can someone else take a look at this and tell me if I'm doing something wrong? I had to adapt the config from one I knew of on an 1841. Here's the current config:

Current configuration : 2405 bytes

!

version 12.3

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname w2mrouter3620

!

logging buffered 4096 debugging

enable secret 5 $1$Jlqq$70Q8tQy4jh65n1sPd/X7V1

!

ip subnet-zero

!

!

ip cef

no ip domain lookup

ip name-server 64.81.159.2

ip name-server 216.231.41.2

!

ip audit notify log

ip audit po max-events 100

!

!

!

!

!

!

!

!

!

!

!

!

no voice hpi capture buffer

no voice hpi capture destination

!

!

!

!

controller T1 0/0

framing esf

linecode b8zs

channel-group 1 timeslots 1-24

!

controller T1 0/1

shutdown

framing esf

linecode b8zs

!

controller T1 0/2

framing esf

linecode b8zs

channel-group 1 timeslots 1-24

!

controller T1 0/3

shutdown

framing sf

linecode ami

!

policy-map fair

class class-default

fair-queue

!

!

!

interface Multilink1

description 572337

ip address x.x.x.x 255.255.255.252

service-policy output fair

load-interval 30

no cdp enable

ppp multilink

ppp multilink fragment disable

ppp multilink links maximum 4

ppp multilink links minimum 1

ppp multilink group 1

!

interface Ethernet0/0

description Inside LAN

ip address z.z.z.z 255.255.255.224

ip verify unicast reverse-path

full-duplex

no keepalive

!

interface Serial0/0:1

description 572336

no ip address

encapsulation frame-relay IETF

load-interval 30

frame-relay lmi-type ansi

!

interface Serial0/0:1.16 point-to-point

frame-relay interface-dlci 16 ppp Virtual-Template1

!

interface Ethernet0/1

no ip address

shutdown

half-duplex

!

interface Serial0/2:1

description 572298

no ip address

encapsulation frame-relay IETF

load-interval 30

frame-relay lmi-type ansi

!

interface Serial0/2:1.16 point-to-point

frame-relay interface-dlci 16 ppp Virtual-Template1

!

interface Virtual-Template1

description member link of 572337

ip address x.x.x.x 255.255.255.252

ppp multilink

ppp multilink links maximum 4

ppp multilink links minimum 1

ppp multilink group 1

!

no ip http server

no ip http secure-server

ip classless

ip route 0.0.0.0 0.0.0.0 Multilink1

!

!

access-list 10 permit 216.254.0.0 0.0.0.255

access-list 10 deny any

!

!

!

!

!

banner login ^CC

Unauthorized access prohibited. Web2Market employees only!

^C

!

line con 0

password 7 111E4B081443180F54

login

line aux 0

line vty 0 4

access-class 10 in

password 7 044C590B0C705F4D59

login

transport input telnet

!

ntp server y.y.y.y

!

!

end

Any ideas? Thanks.

3 Replies 3

royalblues
Level 10
Level 10

The config looks fine but can you let me know whether it is necessary to run Frame relay encapsulation on your links

Configs would have been easier with a plain PPP encapsulation

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/mlppos.htm

HTH

Narayan

Well, it's hard to say conclusively. Like I said, I'm just working off of information the ISP gave me, and they listed in a partial sample config running it with frame-relay encapsulation. Is this something I can change on my end without affecting the other? I mean, is it possible to change it to ppp without having to get buy-in from the ISP?

Agree with Narayan, but considering that speakasy, as dynamic and nice ISP they are, is still a second tier ISP, so they are based on frame relay for T1-class customers, hence the need for MLPPP over frame relay.

It should work.

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