02-07-2013 07:30 AM - edited 03-04-2019 06:58 PM
Hello Guys,
I have configured my two vdsl link with ppp multilink but i am not getting the desired bandwidth. Here is my configuration is this okay or i need something more in the configuration. My router is 2921 what is the maximum WAN throughput of 2921?
!
controller VDSL 0/0/0
!
controller VDSL 0/1/0
!
!
interface Multilink1
no ip address
ip virtual-reassembly in
ip virtual-reassembly out
ppp multilink
ppp multilink links maximum 4
ppp multilink group 1
ppp multilink fragment disable
ppp multilink mrru local 1492
ppp multilink mrru remote 1492
waas enable
!
interface Ethernet0/0/0
no ip address
!
interface Ethernet0/0/0.10
encapsulation dot1Q 10
pppoe enable group global
pppoe-client dial-pool-number 1
!
interface Ethernet0/1/0
no ip address
!
interface Ethernet0/1/0.10
encapsulation dot1Q 10
pppoe enable group global
pppoe-client dial-pool-number 1
!
interface Virtual-Template1
no ip address
!
interface Dialer0
ip address negotiated
encapsulation ppp
dialer pool 1
ppp authentication pap callin
ppp pap sent-username ******** password 0 ********
ppp multilink
ppp timeout idle 2
ppp timeout multilink link remove 2
!
interface Dialer1
description line
mtu 1492
no ip address
!
ip route 0.0.0.0 0.0.0.0 Dialer0
!
02-07-2013 11:03 AM
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You realize, unless you turn on fragmentation, a single flow will be limited to a single link's bandwidth?
Cisco documents maximum 2921 performance as 3.5 Gbps. It also recommends 2921 for WAN links up to only 50 Mbps.
With ppoe's MTU of 1492, you might also be suffering from IP fragmentation. IP TCP mss-adjust 1452 might help too.
02-08-2013 07:51 AM
+5
02-09-2013 05:43 AM
Dear Joseph,
I noticed in
Vi4 LCP: [Open]
Our Negotiated Options
Vi4 LCP: MagicNumber 0xDF5B5F24 (0x0506DF5B5F24)
Vi4 LCP: EndpointDisc 1 nth-connect.rtr1
Vi4 LCP: (0x1313016E74682D636F6E6E6563742E72)
Vi4 LCP: (0x747231)
Our Rejected options
MRRU
Peer's Negotiated Options
Vi4 LCP: MRU 1500 (0x010405DC)
Vi4 LCP: AuthProto PAP (0x0304C023)
Vi4 LCP: MagicNumber 0x416C2DE5 (0x0506416C2DE5)
Our Rejected options MRRU is showing does this need to be resolved?
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