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Example for Configuring CPOS Interfaces to Converge T1 Lines
Networking Requirements
As shown in Figure 16-11, RouterA connects to seven Routers B through H. Each of the seven Routers connects to RouterA using a T1 link. RouterA uses a CPOS interface to aggregate these T1 links.
When another T1 link is added to RouterB to provide more bandwidth, the two T1 links need to be bound using MP-Group interfaces.
The existing configurations are as follows:
- RouterA uses the clock signals transmitted from the SDH network.
- The RouterA's CPOS interface uses SDH as the frame format, and the AUG multiplexing mode is au-4.
Configuration Roadmap
The configuration roadmap is as follows:
- Configure line attributes, including clock mode, frame format, and AUG multiplexing mode, on RouterA's CPOS interface.
By default, the clock mode is slave, frame format is SDH, and AUG multiplexing mode is au-4. The default line attributes on the CPOS interface do not need to be modified in this example.
- Create and configure an MP-Group interface on RouterA and RouterB.
- Configure a T1 channel on the CPOS interface of RouterA and bind the T1 channel to the MP-Group interface.
- Bind the T1-F interface to the MP-Group interface on RouterB.
Procedure
- Create and configure an MP-Group interface on RouterA.
<Huawei> system-view [Huawei] sysname RouterA [RouterA] interface mp-group 0/0/1 [RouterA-Mp-group0/0/1] ip address 10.10.10.1 24 [RouterA-Mp-group0/0/1] quit
- Configure a T1 channel for a CPOS interface.
[RouterA] controller cpos 1/0/0 [RouterA-Cpos1/0/0] t1 1 channel-set 1 timeslot-list 1-24 [RouterA-Cpos1/0/0] t1 2 channel-set 2 timeslot-list 1-24 [RouterA-Cpos1/0/0] quit
- Bind the T1 channel to the MP-Group interface.
[RouterA] interface serial 1/0/0/1:0 [RouterA-Serial1/0/0/1:0] ppp mp mp-group 0/0/1 [RouterA-Serial1/0/0/1:0] quit [RouterA] interface serial 1/0/0/2:0 [RouterA-Serial1/0/0/2:0] ppp mp mp-group 0/0/1 [RouterA-Serial1/0/0/2:0] quit
- Create and configure an MP-Group interface on RouterB.
<Huawei> system-view [Huawei] sysname RouterB [RouterB] interface mp-group 0/0/1 [RouterB-Mp-group0/0/1] ip address 10.10.10.2 24 [RouterB-Mp-group0/0/1] quit
- Bind the T1-F interface to the MP-Group interface on RouterB.
[RouterB] interface serial 1/0/0 [RouterB-Serial1/0/0] ft1 timeslot-list 1-24 [RouterB-Serial1/0/0] ppp mp mp-group 0/0/1 [RouterB-Serial1/0/0] quit [RouterB] interface serial 2/0/0 [RouterB-Serial2/0/0] ft1 timeslot-list 1-24 [RouterB-Serial2/0/0] ppp mp mp-group 0/0/1 [RouterB-Serial2/0/0] quit
- Verify the configuration.
# View information about T1 channel 1 on CPOS 1/0/0.
[RouterA] display controller cpos 1/0/0 t1 1 Cpos1/0/0 current state : UP Description : HUAWEI, AR Series, Cpos1/0/0 Interface Frame-format SDH, multiplex AU-4, clock slave, loopback not set Tx: J0: 0x1, J1: NULL, C2: 0x2 Rx: J0: NULL, J1: NULL, C2: 0x0 Regenerator section: Alarm: none Error: 0 BIP Multiplex section: Alarm: none Error: 0 BIP, 0 REI Higher order path(VC-3-2): Alarm: none Error: 0 BIP, 0 REI Lower order path: Alarm: none Error: 4095 BIP, 2047 REI Cpos1/0/0 CT1 1 is up Frame-format ESF, clock slave, loopback not set T1 framer(2-1-1): Alarm: none Error: 0 CEC, 0 FEBC, 0 REC
# View information about the MP-Group interface on RouterA.
[RouterA] display interface mp-group Mp-group0/0/1 current state : UP Line protocol current state : UP Last line protocol up time : 2011-06-09 10:20:36 Description:HUAWEI, AR Series, Mp-group0/0/1 Interface Route Port,The Maximum Transmit Unit is 1500 Internet Address is 10.10.10.1/24 Link layer protocol is PPP LCP opened, MP opened, IPCP opened Physical is MP, baudrate is 64000 bps Current system time: 2011-02-09 10:21:48 Last 300 seconds input rate 0 bytes/sec, 0 packets/sec Last 300 seconds output rate 0 bytes/sec, 0 packets/sec Realtime 0 seconds input rate 0 bytes/sec, 0 packets/sec Realtime 0 seconds output rate 0 bytes/sec, 0 packets/sec 6 packets input, 84 bytes, 0 drops 6 packets output, 84 bytes, 0 drops Input bandwidth utilization : 0.00% Output bandwidth utilization : 0.00%
# Check the network connectivity.
[RouterA] ping 10.10.10.2 PING 10.10.10.2: 56 data bytes, press CTRL_C to break Reply from 10.10.10.2: bytes=56 Sequence=1 ttl=255 time=14 ms Reply from 10.10.10.2: bytes=56 Sequence=2 ttl=255 time=4 ms Reply from 10.10.10.2: bytes=56 Sequence=3 ttl=255 time=4 ms Reply from 10.10.10.2: bytes=56 Sequence=4 ttl=255 time=4 ms Reply from 10.10.10.2: bytes=56 Sequence=5 ttl=255 time=4 ms --- 10.10.10.2 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 4/6/14 ms
Configuration Files
- Configuration file of RouterA
# sysname RouterA # interface Mp-group0/0/1 ip address 10.10.10.1 24 # controller cpos 1/0/0 t1 1 channel-set 1 timeslot-list 1-24 t1 2 channel-set 2 timeslot-list 1-24 # interface Serial1/0/0/1:0 link-protocol ppp ppp mp mp-group 0/0/1 # interface Serial1/0/0/2:0 link-protocol ppp ppp mp mp-group 0/0/1 # return - Configuration file of RouterB
# sysname RouterB # interface Mp-group0/0/1 ip address 10.10.10.2 24 # interface Serial1/0/0 ft1 timeslot-list 1-24 link-protocol ppp ppp mp mp-group 0/0/1 # interface Serial2/0/0 ft1 timeslot-list 1-24 link-protocol ppp ppp mp mp-group 0/0/1 # return