|
|
Inverse Multiplexing ATM (IMA) brings ATM service to the reach of smaller offices and remote locations. These port adapters are members of the PA-A3 enhanced ATM port adapter family (see the description for Enhanced ATM DS3/E3, OC3/STM1 port adapters) but provide the additional capability to use IMA technology to group multiple T1 or E1 links together to form a single logical ATM transmission trunk.
Key Features:
Eight T1 or E1 ports with IMA (ATM Forum Version 1.0)
T1 and E1 ATM UNI support
Up to 4096 total virtual connections (open VCs)
IMA mixed-mode operation supported (IMA groups + T1/E1 ATM UNI ports combined on the same interface)
ATM adaptation Layer 5 (AAL5) for data traffic
Traffic shaping on a per-VC basis
Non-real time variable bit rate (nrt-VBR), unspecified bit rate (UBR), and available bit rate (ABR) Quality of Service (QoS)
Operation, Administration, and Maintenance (OAM) cells
UNI signaling
ILMI
RFC-1483, RFC 1577
|
Description |
Cisco 7100 |
Cisco 7200 |
Cisco 7200VXR |
Cisco 7500/VIP2 |
Part Number |
|---|---|---|---|---|---|
|
8-port ATM Enhanced T1 IMA |
Yes |
Yes |
Yes |
Yes |
PA-A3-8T1IMA |
|
8-port ATM Enhanced E1 IMA |
Yes |
Yes |
Yes |
Yes |
PA-A3-8E1IMA |
Figure 17-64: 8 port ATM Enhanced T1/E1 IMA (T1 version shown)
