Is FDDI classed as a service or a technology

[masked1]

I believe the above is classed as a technology? Am i correct?

 

[Garion]

Depends on how you define "technology" - That's a bit broad. FDDI is a layer 2 network protocol which specifies how data is sent across fiber (which ls the Layer 1 media). It's definitely NOT a service, however.

- G

 

[spidey07]

Originally posted by: Garion
Depends on how you define "technology" - That's a bit broad. FDDI is a layer 2 network protocol which specifies how data is sent across fiber (which ls the Layer 1 media). It's definitely NOT a service, however.

- G

yep. Its a protocol and an IEEE standard.

Although it is very dead. so very, very dead. In its hayday it was incredible - big frames, auto recovery, super fast.

But gig enet squashed it out of existence.

 

[Goosemaster]

Originally posted by: spidey07

Originally posted by: Garion
Depends on how you define "technology" - That's a bit broad. FDDI is a layer 2 network protocol which specifies how data is sent across fiber (which ls the Layer 1 media). It's definitely NOT a service, however.

- G

yep. Its a protocol and an IEEE standard.

Although it is very dead. so very, very dead. In its hayday it was incredible - big frames, auto recovery, super fast.

But gig enet squashed it out of existence.

SONET is the successor of FDDI then?


Also, what speed could FDDI pull back in the day?

 

[Garion]

Originally posted by: Goosemaster

Originally posted by: spidey07

Originally posted by: Garion
Depends on how you define "technology" - That's a bit broad. FDDI is a layer 2 network protocol which specifies how data is sent across fiber (which ls the Layer 1 media). It's definitely NOT a service, however.

- G

yep. Its a protocol and an IEEE standard.

Although it is very dead. so very, very dead. In its hayday it was incredible - big frames, auto recovery, super fast.

But gig enet squashed it out of existence.

SONET is the successor of FDDI then?


Also, what speed could FDDI pull back in the day?

Think of FDDI as token-ring-over-fiber - It was based on a token passing technology. It was rated at 100Mb/s. As Spidey said, it was GREAT stuff for the time, but the gear was way too expensive for use beyond network backbones.

- G

- G

 

[Goosemaster]

Originally posted by: Garion

Originally posted by: Goosemaster

Originally posted by: spidey07

Originally posted by: Garion
Depends on how you define "technology" - That's a bit broad. FDDI is a layer 2 network protocol which specifies how data is sent across fiber (which ls the Layer 1 media). It's definitely NOT a service, however.

- G

yep. Its a protocol and an IEEE standard.

Although it is very dead. so very, very dead. In its hayday it was incredible - big frames, auto recovery, super fast.

But gig enet squashed it out of existence.

SONET is the successor of FDDI then?


Also, what speed could FDDI pull back in the day?

Think of FDDI as token-ring-over-fiber - It was based on a token passing technology. It was rated at 100Mb/s. As Spidey said, it was GREAT stuff for the time, but the gear was way too expensive for use beyond network backbones.

- G

- G

wow..i dinlt know it was that fast....100Mbps is fast.

 

[spidey07]

and with large frames it flat smoked 100 base-T in its day.

Before ethernet really took off in the mid 90s token ring with a FDDI backbone was the design of choice.

You'd have this big ring made up of fast routers (bay networks BCN and BN stuff.) These routers in turn had lots of routed token ring ports to connected to various token rings (one per floor, etc).

that way you segmented the rings and FDDI transported everything between buildings/data center. High volume servers were FDDI attached.

Ahh, memories.

No more freakin' beacons for me! wahoo!