Beta Draft Confidential
Configuring ATM Logical Ports on Frame-based Modules
Logical Port Congestion Thresholds
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
1/19/05
4-9
Logical Port Congestion Thresholds
Logical port maximum and default congestion threshold values vary depending on the
type of service class configured for the logical port. You can configure congestion
thresholds for both mono-class and Priority Frame QoS multi-class variable frame
rate-non-real time (VFR-NRT) services. See
“Priority Frame Attributes” on page 4-34
for information about configuring mono- and multi-class services.
shows the maximum mono-class service threshold values you can configure
for each frame-based and ATM-based module that supports ATM services.
shows the maximum multi-class service threshold values you can configure
for each frame-based and ATM-based module that supports ATM services.
Table 4-2.
Maximum Mono-Class Service Thresholds per Card Type
Card Type
56-Byte Buffers
Bytes
8-Port UIO
5450
305200
10-Port DSX
4668
261408
4-Port Unchannelized T1
5408
302848
4-Port Unchannelized E1
5408
302848
12-Port Unchannelized E1
1922
107632
2-Port HSSI
23632
1323392
1-Port ATM UNI
60799
3404744
Table 4-3.
Maximum Multi-Class Service Thresholds per
Card Type
Card Type
56-Byte Buffers
Bytes
8-Port UIO
2800 (if port speed is <
or = 2048 Kbps)
156800
5600 (if port speed is >
2048 and < or = 4096
Kbps)
313600
11200 (if port speed is
> 4096 and < or = 8192
Kbps)
627200
10-Port DSX
2080
116480
4-Port Unchannelized T1
1600
89600
Содержание CBX 3500
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