Configuration Example; Bandwidth Allocation Example - Cabletron Systems Netlink FRX4000 User Manual

Group "n" Excess Priority
Group "n" Use Excess Burst

Configuration Example

7-8
both groups are assigned to IP interfaces. Under a full traffic load, Group 1 will be
allocated 60/130 (46%) of the available bandwidth, and Group 2 will be allocated 70/
130 (54%).
determines the order in which groups are given their allocations of bandwidth; the
higher the number, the higher the priority.
will (if ) allow traffic that falls into the
Y
packets exceeding B will be buffered in the FRX4000/6000.
E
Here is an example of a typical Bandwidth Allocation Group configuration:
Table 7-2 Bandwidth Allocation Example
Group Used For
SNA
1
Logical Ports & Mgmt.
2
IP
3
IPX
4
This configuration ensures that SNA traffic, which is very time-sensitive, will be
given top priority, and will all be transmitted within the guaranteed 30% of the band-
width, eliminating the risk of discarded packets. Sequenced arrival of packets is not
critical among the first three groups, so those types of traffic can be configured to
allow transmission above the
is transmitted with the Discard Eligibility bit set, which allows packets to be discarded
if necessary.)
Excess Burst Size
Percentage Excess Priority Use Excess Burst
30 16
20 15
30 14
20 13
Committed Information Rate
FRX4000/FRX6000 4.0 User Guide, Rev 01
to be transmitted. Any
N
Y
Y
Y
(CIR). (Traffic above CIR