Beta Draft Confidential
7-101/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring Trunks
About APS
CBX 3500 Notes:
• Intercard APS
– Uni-directional APS is not supported on the Universal IOP; only
bi-directional APS is supported.
– Intercard APS is supported only between two Universal IOPs. It is not
supported between a Universal IOP and an IOM1 in the CBX 3500.
• CID Server
CID Server functionality for the Universal IOP is not supported in this release.
Once a port is configured for APS, CID space is partitioned into static allocation
for each port on the Universal IOP.
• Universal IOP
• The CBX 3500 ATM Universal IOP supports both inter-card and intra-card
APS, while the POS Universal IOP supports only intra-card APS.
See the Switch Module Configuration Guide
for CBX 3500, CBX 500, GX 550, and
B-STDX 9000
for a listing of the minimum software and hardware versions that support
the various APS options.
The following sections summarize these options.
1-Port OC-48/
STM-16 Phy
UNI
a
,
Direct
trunk
b
PVC GR-253,
G.783/
G.841
Annex B
Bi-directional Non-revertive Inter-card
a
APS support provided by Resilient UNI.
b
APS support provided by APS trunk backup.
Table 7-2. Slow APS Support
Switch/
Modules
Logical
Port
Circuit
Type
Base
Standard
Direction Reversion Inter or
Intra
card
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