Multilink and STM1

Question:

've only read about multilink is that Cisco 3560X Price it is use for Bundling the Multiple E1 channels into one.
How can i split STM1 channels through Multilink, mean to say, STM1 63 channels divided into
63 pats so that i can distribute each remote location with 2 mbps (per channel =2 mbps) .
I think that we can not split STM channels through Multilink, Plz correct me if i m wrong ?

1. What is use of Multilink : Merge or Split or Both ?

2. is STM1 is collection of 63 E1 channels ?

3. Difference between "show interface serial"   and  "show controller e1"  commands
    Which command will show  physical serial port status and channelized serial port status.


Answer:

\1)  the STM-1 can be split in many E1 -like 2 Mbps streams that is the building block of the multiplexing/demultiplexing

PPP multilink can be used to make a bundle of two of the derived E1 streams, but again as I noted in my previous post it is not related to the multiplex/demultiplex operations that are part of SDH framework.

look for channelized STM-1 configuration like

http://www.cisco.com/en/US/prod/collateral/modules/ps6267/product_data_sheet0900aecd80350c53.html

http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/ASR1000/ASRcstm1.html

In SDH framing in AU-4 mode:

#
Router(config-ctrlr-tug3)# mode {c-11 | c-12 | t3 | e3}

#
In SDH framing AU-3 mode:

#
Router(config-ctrlr-au3)# mode {c-11 | c-12 | t3 | e3 | ct3 | ct3-e1}

http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/ASR1000/ASRcstm1.html#wp1153685

Actually there is OC-3 then 3 DS-3 and then 28 DS-1 /E1 in each T3/DS3 container

2)

you will have a controller e1 0/0 and you can have a derived serial object like ser0/0:1 (corresponding to the channel-group number)

controller e1 0/0
channel-group 0 timeslots 1-31

creates

serial0/0:0

so

show int control e1 0/0 provides you OSI layer1 information

sho int ser 0/0:0 provides Cisco 3560X  you OSI layer2