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Summit24e3 Switch Installation and User Guide
Ethernet Automatic Protection Switching
NOTE
When the master node declares a failed state, it also flushes its forwarding database (FDB) and sends
a “flush FDB” message to all the transit switches on the ring by way of the control VLAN. The reason
for flushing the FDB is so that the switches can relearn the new directions to reach Layer 2 end stations
via the reconfigured topology.
The following command examples configure the hellotime value for the EAPS domain “eaps_1” to 2
seconds and the failtime value to 10 seconds.
config eaps eaps_1 hellotime 2
config eaps eaps_1 failtime 10
Configuring the Primary and Secondary Ports
Each node on the ring connects to the ring through two ring ports. As part of the protection switching
scheme, one port must be configured as the primary port; the other must be configured as the secondary
port.
If the ring is complete, the master node prevents a loop by logically blocking all data traffic in the
transmit and receive directions on its secondary port. If the master node subsequently detects a break in
the ring, it unblocks its secondary port and allows data traffic to be transmitted and received through it.
To configure a node port as primary or secondary, use the following command:
config eaps <name> [primary | secondary] port <port number>
The following command example adds port 2 of the switch to the EAPS domain “eaps_1” as the
primary port.
config eaps eaps_1 primary port 2
Configuring the EAPS Control VLAN
You must configure one control VLAN for each EAPS domain. The control VLAN is used only to send
and receive EAPS messages.
NOTE
A control VLAN cannot belong to more than one EAPS domain.
To configure the EAPS control VLAN for the domain, use the following command:
config eaps <name> add control vlan <name>
NOTE
To avoid loops in the network, the control VLAN must NOT be configured with an IP address, and
ONLY ring ports may be added to the VLAN.
Содержание Summit Summit24
Страница 12: ...12 Contents Summit24e3 Switch Installation and User Guide Index Index of Commands ...
Страница 14: ...14 Figures Summit24e3 Switch Installation and User Guide ...
Страница 24: ...24 Summit24e3 Switch Installation and User Guide Summit24e3 Switch Overview ...
Страница 32: ...32 Summit24e3 Switch Installation and User Guide Switch Installation ...
Страница 78: ...78 Summit24e3 Switch Installation and User Guide Configuring Ports on a Switch ...
Страница 118: ...118 Summit24e3 Switch Installation and User Guide Network Address Translation NAT ...
Страница 132: ...132 Summit24e3 Switch Installation and User Guide Ethernet Automatic Protection Switching ...
Страница 146: ...146 Summit24e3 Switch Installation and User Guide Quality of Service QoS ...
Страница 158: ...158 Summit24e3 Switch Installation and User Guide Status Monitoring and Statistics ...
Страница 204: ...204 Summit24e3 Switch Installation and User Guide Interior Gateway Routing Protocols ...
Страница 212: ...212 Summit24e3 Switch Installation and User Guide Safety Information ...
Страница 216: ...216 Summit24e3 Switch Installation and User Guide Supported Standards ...
Страница 238: ...238 Index Summit24e3 Switch Installation and User Guide ...
Страница 244: ...244 Index of Commands Summit24e3 Switch Installation and User Guide ...