18. Frame Relay:
-
Frame Relay is well suited for
intermittent and burst traffic.
-
Frame Relay can carry multiple
PVCs over a single physical
circuit.
-
CIR (Committed Information Rate)
is the rate at which a Frame
Relay network agrees
(guaranteed) to transfer
information under normal
conditions, averaged over a
minimum increment of time.
Expressed in bits/ Sec. Any
packets traveling over the CIR
are subject to be discarded
under certain conditions.
-
Frame Relay uses Data Link
Connection Identifier (DLCI) to
identify Layer 2 connections in
a Frame Relay network.
-
Bc stands for Committed Burst.
This is a negotiated tariff
metric in FR network.
-
Cisco supports the use of a
10-bit DLCI field resulting in a
maximum of 1024 data link
connection identifiers with
numbering starting at 0 and
ending at 1023.
20. The catalyst 1900 series
switches are equipped with 12
(1912) or 24 (1924) switched
10BaseT ports. These ports can
be attached to hosts or hubs.
These switches also have two
100BaseT ports. These high-speed
ports can be used for attachment
to Servers and backbones.
