| Title: | FDDI - The Next Generation |
| Moderator: | NETCAD::STEFANI |
| Created: | Thu Apr 27 1989 |
| Last Modified: | Thu Jun 05 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2259 |
| Total number of notes: | 8590 |
My customer has an FDDI ring consisting of 8 X Cisco AGS+ Bridge
Routers.
Each Cisco bridge router is configured with 8 ethernet interfaces and
one FDDI DAS interface.
Each of the CISCOs is reporting input framing errors (approx 200 in an
hour).
We have attached a LANhawk analyser on several postions on the ring and
it can detect no errors even while the ciscos are still clocking up
input framing errors.
Has anyone seen this problem with Cisco before?
thanks
Gary
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 879.1 | Just saw this last week | CSOA1::SEITZ | The system is a Network | Mon Mar 01 1993 22:31 | 4 |
I was just talking with a customer last week with similar symptoms. I
suggest that this may be a symptom of the performance issues noted by
Scott Bradner. They will be looking into this in more detail but I
canshed no further light on it.
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| 879.2 | More to the frame count | YUPPY::HOUSTON | Tue Mar 02 1993 09:35 | 10 | |
Using the FDDI LANhawk and attaching the analyser to various parts of
the DAS FDDI ring and interrogating the EFS of the frame; in all cases
of different types of protocol frames (TCP/IP, DECNET, UDP, ICMP/IP)
analysed, the E bit was always observed to be (R)eset.
We are currently asking the client contractor who installed the FDDI
patch to re OTDR this patch at 1300 nm and are awaiting the results
of this trace.
Vinod Mahajan (Customer Services)
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