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T1 Layer 2 Addressing name?

dan87951

What is the layer 2 addressing name of a T1 circuit? I know there is a acroynm out there for it but for the life of me cannot find it anywhere.
Anyone know it?

Thanks

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Comments

it_consultant

Circuit ID, MAC address?

cisco_trooper

PPP, HDLC, or Frame Relay.

Forsaken_GA

I suspect he's looking for layer 2 to layer 3 address mapping, and I suspect it's in the context of frame relay, so I'm betting he's looking for DLCI

dan87951

service access point identifier? Could this be it? The T1 circuits I set up were all PPP.

Forsaken_GA

dan87951 wrote: »

service access point identifier? Could this be it? The T1 circuits I set up were all PPP.

PPP doesn't do any layer 2 addressing. It doesn't need it, it's a point to point link. By definition, the traffic only has one place to go, to the other side of the link, so no layer 2 addressing is necessary.

cisco_trooper

Forsaken_GA wrote: »

PPP doesn't do any layer 2 addressing. It doesn't need it, it's a point to point link. By definition, the traffic only has one place to go, to the other side of the link, so no layer 2 addressing is necessary.

LOL. I didn't even consider addressing. I just threw some layer 2 encapsulations out there. Good call. I'm leaning toward DLCI myself.