What is the default option for framing when you configure a T1 controller?

7 thoughts on “What is the default option for framing when you configure a T1 controller?”

1. I agree with the answer C.
   •esf—Specifies Extended Super Frame as the T1 frame type. This is the default. for T1.
   •crc4—Specifies CRC4 frame as the E1 frame type. This is the default for E1.
   https://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-3_1_S/chassis/configuration/guide/3600x_24cxscg/sw_T1-E1.html

   Reply

2. correct answer
   C. Extended Super Frame

   Reply

3. C is the correct answer

   Step 4

   For T1 Controllers:

   Router(config-controller)# framing {sf | esf}

   For E1 Controllers:

   Router(config-controller)# framing {crc4 | no-crc4}

   Selects the framing type.

   •sf—Specifies Super Frame as the T1 frame type. (sf is not supported.)

   •esf—Specifies Extended Super Frame as the T1 frame type. This is the default for E1.

   •crc4—Specifies CRC4 as the E1 frame type. This is the default for E1.

   •no-crc4—Specifies no CRC4 as the E1 frame type.

   Extract from:

   https://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-3_1_S/chassis/configuration/guide/3600x_24cxscg/sw_T1-E1.html

   Reply

4. C is the correct answer
   Default framing for
   T1: ESF
   E1: CRC4

   Reply

5. SF is technically not supported.
   Answer is C — ESF
   http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-3_1_S/chassis/configuration/guide/3600x_24cxscg/sw_T1-E1.html#wp1094919

   Reply

6. A&C use the framing {SF | ESF} http://www.cisco.com/c/en/us/support/docs/wan/t1-e1-t3-e3/14170-T1-alarms.html
   Framing type SF-ESF Line Code type AMI – B8ZS – Typically ESF uses B8ZS code and SF uses AMI coding

   Reply

7. C

   Default framing for
   T1: ESF
   E1: CRC4

   Reply