One Vap Per Uplink Per Vlan; Figure 2. Unsupported Configuration; Figure 3. Connecting One Switch To Two Vaps - Cabletron Systems SSIM-A2-01 Installation And User Manual

One VAP per Uplink per VLAN

The SSIM-Ax-01 module does not allow configurations in which the following
frame operations take place within a single uplink module:
•
Bridging from ATM back to ATM.
•
Broadcasting a frame from Token Ring to more than one ATM ELAN.
These operations would occur if the uplink module provided more than one VAP
per VLAN. Therefore, the configuration shown in Figure 2 is not supported.

Figure 2. Unsupported Configuration

If you want to connect the same STS16-20RM Token Ring Switch to ATM via
more than one VAP, the VAPs must reside on different ATM uplink modules, as
shown in Figure 3.

Figure 3. Connecting One Switch to Two VAPs

SmartStack SSIM-A2-01/SSIM-A8-01
5
Installation