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Fractional T1 via Frame Relay

Could someone please explain what Fractional T1 via Frame Relay means? Which hardware support this?

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: Fractional T1 via Frame Relay

Binh

I believe that the configs that you post would be fine.

the NM-1CE1T1-PRI is for ISDN PRI. I do not see running Frame Relay over ISDN.

HTH

Rick

6 REPLIES
Hall of Fame Super Gold

Re: Fractional T1 via Frame Relay

Binh

A fractional T1 is a serial link that operates at a fraction of full T1 rate (1.544Mb is full rate). A fractional T1 may operate with normal point to point encapsulations such as PPP or HDLC or it can operate with Frame Relay encapsulation.

So a fractional T1 via Frame Relay would be a serial link providing some fraction of 1.544 speed and using Frame Relay encapsulation. (connected to a Frame Relay service provider)

HTH

Rick

Community Member

Re: Fractional T1 via Frame Relay

Rick,

And which hardware do I need to do this? Any T1 cards with 18xx/26xx/38xx routers?

Thanks!

Hall of Fame Super Gold

Re: Fractional T1 via Frame Relay

Binh

A T1 card in any router should be able to do fractional T1 over Frame Relay.

HTH

Rick

Community Member

Re: Fractional T1 via Frame Relay

If I use WIC-1DSU-T1-V2 with a 26xx router, are the following configs good?

interface Serial0/0

service-module t1 framing esf

service-module t1 linecode b8zs

service-module t1 timeslots 1-12 speed 64

service-module t1 data-coding normal

service-module t1 cablelength short 440ft

service-module t1 remote-loopback full

no ip address

encapsulation frame-relay IETF

frame-relay lmi-type cisco

interface Serial0/0.100

ip address 10.10.10.1 255.255.255.0

frame-relay interface-dlci 100

...

Does this card NM-1CE1T1-PRI work?

What are the advantages/disadvantages of channelized vs non-channelized given fractional T1 will be used?

Thanks a lot.

Hall of Fame Super Gold

Re: Fractional T1 via Frame Relay

Binh

I believe that the configs that you post would be fine.

the NM-1CE1T1-PRI is for ISDN PRI. I do not see running Frame Relay over ISDN.

HTH

Rick

Community Member

Re: Fractional T1 via Frame Relay

Rick,

Thanks a lot!

-Binh

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