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Задача состояла в следующем:
Две циски связаны двумя 2Mb каналами. Нужно получить один канал с пропускной способностью 4Mb
Предложено решение:
использовать ppp multilink

Так как 2509 не подерживала interface multilink пришлось использовать interface virtual-template, но это не отразилось на работе.

ppp multilink можно настроить:

interface multilink — interface multilink

interface multilink — interface virtual-template

interface virtual-template — interface virtual-template

interface multilink — interface multilink
2610

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname RouterA
!
enable secret 5 *****
!
!
!
!
!
memory-size iomem 10
ip subnet-zero
!
cns event-service server
!
!
!
voice-port 1/0/0
!
voice-port 1/0/1
!
voice-port 1/1/0
!
voice-port 1/1/1
!
process-max-time 200
!
interface Multilink1
 ip address 192.168.10.2 255.255.255.0
 no ip directed-broadcast
 no cdp enable
 ppp multilink
 multilink-group 1
!
interface Ethernet0/0
 ip address 10.254.4.1 255.255.255.0
 no ip directed-broadcast
!
interface Serial0/0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown
 no fair-queue
!
interface Serial0/1
 no ip address
 no ip directed-broadcast
 shutdown
!
interface Serial0/2
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 ppp multilink
 multilink-group 1
!
interface Serial0/3
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 ppp multilink
 multilink-group 1
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.10.1
no ip http server
!
!
!
line con 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 password *****
 login
!
!
no scheduler allocate
end

3640

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname RouterC
!
enable secret 5 *****
!
!
!
!
!
ip subnet-zero
!
cns event-service server
!
!
!
voice-port 1/0/0
!
voice-port 1/0/1
!
voice-port 1/1/0
!
voice-port 1/1/1
!
!
!
interface Multilink1
 ip address 192.168.10.1 255.255.255.0
 no ip directed-broadcast
 no cdp enable
 ppp multilink
 multilink-group 1
!
interface Ethernet0/0
 ip address 10.254.4.1 255.255.255.0
 no ip directed-broadcast
!
interface Serial0/0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no ip mroute-cache
 no fair-queue
 clockrate 2000000
 no cdp enable
 ppp multilink
 multilink-group 1
!
interface Serial0/1
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 clockrate 2000000
 no cdp enable
 ppp multilink
 multilink-group 1
!
interface Serial2/0
 no ip address
 no ip directed-broadcast
 shutdown
!
interface Serial2/1
 no ip address
 no ip directed-broadcast
 shutdown
!
interface Serial2/2
 no ip address
 no ip directed-broadcast
 shutdown
!
interface Serial2/3
 no ip address
 no ip directed-broadcast
 shutdown
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.10.2
ip http server
!
!
!
line con 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 password *****
 logging synchronous
 login
!
end

interface virtual-template — interface multilink
2509

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname RouterB
!
enable secret 5 *****
!
ip subnet-zero
multilink virtual-template 1
!
!
!
interface Ethernet0
 ip address 10.254.5.1 255.255.255.0
 no ip directed-broadcast
!
interface Virtual-Template1
 ip address 192.168.10.1 255.255.255.0
 no ip directed-broadcast
 ppp multilink
!
interface Serial0
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no ip mroute-cache
 no fair-queue
 clockrate 2000000
 pulse-time 3
 no cdp enable
 ppp multilink
!
interface Serial1
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 clockrate 2000000
 pulse-time 3
 no cdp enable
 ppp multilink
!
ip nat translation timeout never
ip nat translation tcp-timeout never
ip nat translation udp-timeout never
ip nat translation finrst-timeout never
ip nat translation syn-timeout never
ip nat translation dns-timeout never
ip nat translation icmp-timeout never
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.10.2
!
!
line con 0
 transport input none
line 1 8
line aux 0
line vty 0 4
 exec-timeout 0 0
 password *****
 logging synchronous
 login
!
end

2610

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname RouterA
!
enable secret 5 *****
!
!
!
!
!
memory-size iomem 10
ip subnet-zero
!
cns event-service server
!
!
!
voice-port 1/0/0
!
voice-port 1/0/1
!
voice-port 1/1/0
!
voice-port 1/1/1
!
process-max-time 200
!
interface Multilink1
 ip address 192.168.10.2 255.255.255.0
 no ip directed-broadcast
 no cdp enable
 ppp multilink
 multilink-group 1
!
interface Ethernet0/0
 ip address 10.254.4.1 255.255.255.0
 no ip directed-broadcast
!
interface Serial0/0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown
 no fair-queue
!
interface Serial0/1
 no ip address
 no ip directed-broadcast
 shutdown
!
interface Serial0/2
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 ppp multilink
 multilink-group 1
!
interface Serial0/3
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 ppp multilink
 multilink-group 1
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.10.1
no ip http server
!
!
!
line con 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 password *****
 login
!
!
no scheduler allocate
end

interface virtual-template — interface virtual-template
2610

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
enable secret 5 *****
!
!
!
!
!
memory-size iomem 10
ip subnet-zero
!
multilink virtual-template 1
cns event-service server
!
!
!
voice-port 1/0/0
!
voice-port 1/0/1
!
voice-port 1/1/0
!
voice-port 1/1/1
!
process-max-time 200
!
interface Ethernet0/0
 ip address 10.254.5.1 255.255.255.0
 no ip directed-broadcast
!
interface Serial0/0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no ip mroute-cache
 shutdown
 no fair-queue
 ppp multilink
!
interface Serial0/1
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 shutdown
 no fair-queue
 ppp multilink
!
interface Serial0/2
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 pulse-time 3
 ppp multilink
!
interface Serial0/3
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 pulse-time 3
 ppp multilink
!
interface Virtual-Template1
 ip address 192.168.10.2 255.255.255.0
 no ip directed-broadcast
 ppp multilink
!
ip classless
no ip http server
!
!
!
line con 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 password *****
 logging synchronous
 login
!
!
no scheduler allocate
end

2509

!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname RouterB
!
enable secret 5 *****
!
ip subnet-zero
multilink virtual-template 1
!
!
!
interface Ethernet0
 ip address 10.254.5.1 255.255.255.0
 no ip directed-broadcast
!
interface Virtual-Template1
 ip address 192.168.10.1 255.255.255.0
 no ip directed-broadcast
 ppp multilink
!
interface Serial0
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no ip mroute-cache
 no fair-queue
 clockrate 2000000
 pulse-time 3
 no cdp enable
 ppp multilink
!
interface Serial1
 bandwidth 2048
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no fair-queue
 clockrate 2000000
 pulse-time 3
 no cdp enable
 ppp multilink
!
ip nat translation timeout never
ip nat translation tcp-timeout never
ip nat translation udp-timeout never
ip nat translation finrst-timeout never
ip nat translation syn-timeout never
ip nat translation dns-timeout never
ip nat translation icmp-timeout never
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.10.2
!
!
line con 0
 transport input none
line 1 8
line aux 0
line vty 0 4
 exec-timeout 0 0
 password *****
 logging synchronous
 login
!
end

ICQ: 51908208