中心设备：ASR1006配置SPA-1XCHSTM1/OC3与SFP-OC3-SR 模块。
现场设备：CISCO2801C/K9配置HWIC-2T-C模块与ISR4331/K9配置NIM-2CE1T1-PRI 模块。
中心ASR1006的CPOS口划分为63个2M时隙，通过传输设备2M通道连接到现场的路由器2081或4331。
中心ASR1006时隙划分如下：
controller SONET 0/0/0
framing sdh
clock source line
aug mapping au-4
!
au-4 1 tug-3 1
mode c-12
tug-2 1 e1 1 unframed
tug-2 1 e1 2 unframed
tug-2 1 e1 3 unframed
tug-2 2 e1 1 unframed
tug-2 2 e1 2 unframed
tug-2 2 e1 3 unframed
tug-2 3 e1 1 unframed
tug-2 3 e1 2 unframed
tug-2 3 e1 3 unframed
tug-2 4 e1 1 unframed
tug-2 4 e1 2 unframed
tug-2 4 e1 3 unframed
tug-2 5 e1 1 unframed
tug-2 5 e1 2 unframed
tug-2 5 e1 3 unframed
tug-2 6 e1 1 unframed
tug-2 6 e1 2 unframed
tug-2 6 e1 3 unframed
tug-2 7 e1 1 unframed
tug-2 7 e1 2 unframed
tug-2 7 e1 3 unframed
!
au-4 1 tug-3 2
mode c-12
tug-2 1 e1 1 unframed
tug-2 1 e1 2 unframed
tug-2 1 e1 3 unframed
tug-2 2 e1 1 unframed
tug-2 2 e1 2 unframed
tug-2 2 e1 3 unframed
tug-2 3 e1 1 unframed
tug-2 3 e1 2 unframed
tug-2 3 e1 3 unframed
tug-2 4 e1 1 unframed
tug-2 4 e1 2 unframed
tug-2 4 e1 3 unframed
tug-2 5 e1 1 unframed
tug-2 5 e1 2 unframed
tug-2 5 e1 3 unframed
tug-2 6 e1 1 unframed
tug-2 6 e1 2 unframed
tug-2 6 e1 3 unframed
tug-2 7 e1 1 unframed
tug-2 7 e1 2 unframed
tug-2 7 e1 3 unframed
!
au-4 1 tug-3 3
mode c-12
tug-2 1 e1 1 unframed
tug-2 1 e1 2 unframed
tug-2 1 e1 3 unframed
tug-2 2 e1 1 unframed
tug-2 2 e1 2 unframed
tug-2 2 e1 3 unframed
tug-2 3 e1 1 unframed
tug-2 3 e1 2 unframed
tug-2 3 e1 3 unframed
tug-2 4 e1 1 unframed
tug-2 4 e1 2 unframed
tug-2 4 e1 3 unframed
tug-2 5 e1 1 unframed
tug-2 5 e1 2 unframed
tug-2 5 e1 3 unframed
tug-2 6 e1 1 unframed
tug-2 6 e1 2 unframed
tug-2 6 e1 3 unframed
tug-2 7 e1 1 unframed
tug-2 7 e1 2 unframed
tug-2 7 e1 3 unframed
由于个别2M通道业务流量较高，想对这个别扩至4M通道，传输设备那里说他们可以把他们的2个2M通道聚合成1个4M通道，但中心ASR1006上已经是划分号的2M时隙。
1.应该不能单独把个别2个2M时隙聚合成1个4M吧？
2.如果在ASR1006上单独增加一个CPOS口，可以把这个CPOS口全部划分成4M时隙吗？
3.现场的2M通道模块HWIC-2T-C与NIM-2CE1T1-PRI应该也不能变成4M吧？那有可用的4M通道模块吗？
求教各位指导下，谢谢了！
