PPP Multilink

PPP Multilink:

 

·         Multilink is simply bundling the links together.

·         Let me take a small topology to configure this one.

 

R1----s1/0---------------------s1/0------R2

R2----s1/1---------------------s1/1------R2

10.1.1.1---------------------------10.1.1.2

 

 

R1# show run

!

interface Multilink1

 ip address 10.1.1.1 255.255.255.0

 ppp multilink

 ppp multilink group 1

!

interface Serial1/0

 no ip address

 encapsulation ppp

 no peer default ip address

 serial restart-delay 0

 ppp multilink

 ppp multilink group 1

!

interface Serial1/1

 no ip address

 encapsulation ppp

 serial restart-delay 0

 ppp multilink

 ppp multilink group 1

!

R1#

 

R2#show run

!

interface Multilink1

 ip address 10.1.1.2 255.255.255.0

 ppp multilink

 ppp multilink group 1

!

!

interface Serial1/0

 no ip address

 encapsulation ppp

 serial restart-delay 0

 ppp multilink

 ppp multilink group 1

!

interface Serial1/1

 no ip address

 encapsulation ppp

 serial restart-delay 0

 ppp multilink

 ppp multilink group 1

!

 

R1#show ppp multilink active

 

Multilink1, bundle name is R2

  Endpoint discriminator is R2

  Bundle up for 00:02:59, total bandwidth 3088, load 1/255

  Receive buffer limit 24000 bytes, frag timeout 1000 ms

    0/0 fragments/bytes in reassembly list

    0 lost fragments, 15 reordered

    0/0 discarded fragments/bytes, 0 lost received

    0x41 received sequence, 0x41 sent sequence

  Member links: 2 active, 0 inactive (max not set, min not set)

    Se1/0, since 00:02:59

    Se1/1, since 00:02:53

R1#

 

R2#show ppp multilink active

 

Multilink1, bundle name is R1

  Endpoint discriminator is R1

  Bundle up for 00:03:18, total bandwidth 3088, load 1/255

  Receive buffer limit 24000 bytes, frag timeout 1000 ms

    0/0 fragments/bytes in reassembly list

    0 lost fragments, 16 reordered

    0/0 discarded fragments/bytes, 0 lost received

    0x43 received sequence, 0x43 sent sequence

  Member links: 2 active, 0 inactive (max not set, min not set)

    Se1/0, since 00:03:18

    Se1/1, since 00:03:12

R2#

 

R1#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            unassigned      YES unset  administratively down down

FastEthernet0/1            unassigned      YES unset  administratively down down

Serial1/0                  unassigned      YES manual up                    up

Serial1/1                  unassigned      YES unset  up                    up

Serial1/2                  unassigned      YES unset  administratively down down

Serial1/3                  unassigned      YES unset  administratively down down

Multilink1                 10.1.1.1        YES manual up                    up

R1#

R1#ping 10.1.1.2

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/19/64 ms

R1#

 

R2#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            unassigned      YES unset  administratively down down

FastEthernet0/1            unassigned      YES unset  administratively down down

Serial1/0                  unassigned      YES manual up                    up

Serial1/1                  unassigned      YES unset  up                    up

Serial1/2                  unassigned      YES unset  administratively down down

Serial1/3                  unassigned      YES unset  administratively down down

Multilink1                 10.1.1.2        YES manual up                    up

R2#

R2#ping 10.1.1.1

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/29/72 ms

R2#