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Cajun P220, P550, P550R Switch Release Notes, Release 4.0.1 12
Chapter 6 Problems and Workarounds
The following problems and workarounds generally apply to all Cajun switches unless expressly
specified.
Cajun 48-Port 10/100 Media Module
Problem: Due to the positioning of the Cajun P550 48-Port Media Module (M5548E-
100TC) as a high-density desktop connectivity module, the following functionality is not
supported:
• Multi-layer and 3Com trunk mode
• Link aggregation (hunt groups)
• Port mirroring
• 3Com mapping table selection
• Flow control setting of "Enable with Aggressive Backoff"
• PACE priority mode
• Spanning tree mode (disabled by factory default; enabled in other cases)
• Port statistics: intra-BCM5308 unicast frames not reflected
Additionally, flow control and rate limiting available only on a per-module basis
Workarounds:
• If link aggregation is required over a 10/100TX Link, use a Cajun P550 20-port
Module (M5520-100TX) or a Cajun P550 Layer 3 12-port Copper Module (M5512R-
100TX).
• If a port is inadvertently configured to use Multilayer tagging, reconfigure the port to
use either Clear or IEEE 802.1Q tagging. To reconfigure the port from the Enhanced
CLI, enter the following command at the system prompt:
set port trunking-format {<mod-num>|<mod-port-range>}[...[,]{<mod-
num>|<mod-port-range>}] { clear | ieee-802.1Q}