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Example parameter settings:
ï‚Ÿ RSTP Enabled = enabled
ï‚Ÿ LAG cross-card = N (No) or disabled
ï‚Ÿ Access router LAG:
ï‚Ÿ LACP Min Ports = 2
ï‚Ÿ LACP Max Ports = 2
Facility and equipment protection using RSTP
Individual Ethernet port interfaces with either a Trunk or Edge role can participate in Rapid
Spanning Tree Protocol (RSTP).
ï‚Ÿ Facility protection can be configured by using two ports on the same E7 card.
ï‚Ÿ Equipment protection can be configured by using one port on two cards in the same E7
shelf. That is, one port on each E7 card.
ï‚Ÿ For Modular Chassis systems, RSTP is only supported on MCC shelf interfaces.
ï‚Ÿ For E7-20 systems, RSTP is only supported on SCP cards.
ï‚Ÿ For cross-card LAG interfaces, RSTP is not supported on the E7, and the LAG end
connected to a switch must also have RSTP disabled. If RSTP is enabled on the
connected system, then that system will take 20-30 seconds to pass traffic again while
waiting for RSTP to timeout.
Note: Node protection can be configured by using two E7-2 nodes on an ERPS ring. See
Configuring RSTP Settings for the RSTP parameters to apply to the nodes.
To view the E7 Ethernet port interfaces that are actively participating in RSTP, click E7 on
the Navigation Tree, and then click the RSTP > Interfaces tabs.
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