3Com 4007, Command Reference Manual

Page: 538 / 574

538 C
HAPTER
18: Q
UALITY OF
S
ERVICE
(Q
O
S)
AND
R
ESOURCE
R
ESERVATION
P
ROTOCOL
(RSVP)
Layer 2
Switching
Modules
✓
Multilayer
Switching
Modules
qos rsvp enable Enables RSVP on a Multilayer Switching Module.
Valid Minimum Abbreviation
q r e
Important Considerations
■
By default, RSVP is disabled.
■
In general, when you enable RSVP, use the default settings.
■
You are allowing RSVP to reserve this amount of bandwidth on the
module. You can oversubscribe (over 100) and specify a value of up to
200.
Options
Prompt Description Possible Values [Default]
Maximum total
reservable
bandwidth Admission control policy. RSVP
begins to refuse reservations
when the requested
bandwidth on an output link
exceeds the total reservable
bandwidth. 0 – 200 percent 50 (factory
default)
Maximum per-
reservation
bandwidth Largest reservation that RSVP
attempts to install. 0 – 100 percent 50 (factory
default)
Policing option When to drop excess packets.
Edge policing
drops excess
packets only at the edge (that
is, when traffic has not yet
passed through any network
device that has already
performed policing for that
flow).
■
With edge , the module
polices the flow when RSVP
requests it.
■
With always , the module
polices the flow regardless
of whether RSVP requests
it.
■
With never , the module
never polices the flow even
if RSVP requests it.
■
edge
■
always
■
never
edge (factory
default)