H3C S5120-EI Series - Configuring RRPP Rings; Configuring RRPP Ports

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Ste
p
Command Remarks
5. Display the currently activated
configuration information of
the MST region.
display stp region-configuration [ |
{ begin | exclude | include }
regular-expression ]
Optional.
Available in any view.
The command output includes
VLAN-to-instance mappings.
For more information about the
command, see Layer 2—LAN
Switching Command Reference.
6. Return to system view.
quit
Not required if the device is
operating in PVST mode.
7. Enter RRPP domain view.
rrpp domain domain-id N/A
8. Configure protected VLANs
for the RRPP domain.
protected-vlan reference-instance
instance-id-list
By default, no protected VLAN is
configured for an RRPP domain.
NOTE:
W
hen confi
g
urin
g
load balancin
g
, you must confi
g
ure different protected VLANs for different RRPP
domains.
Configuring RRPP rings
When configuring an RRPP ring, you must make some configurations on the ports connecting each node
to the RRPP ring before configuring the nodes.
RRPP ports (connecting devices to an RRPP ring) must be Layer-2 Ethernet ports or Layer-2 aggregate
interfaces and cannot be member ports of any aggregation group or smart link group.
After configuring a Layer-2 aggregate interface as an RRPP port, you can still assign ports to or remove
ports from the aggregation group corresponding to the interface.
Configuring RRPP ports
Perform this configuration on each node’s ports intended for accessing RRPP rings.
Configuration guidelines
• RRPP ports always allow packets of the control VLANs to pass through.
• For more information about the port link-type trunk, port trunk permit vlan, and undo stp enable
commands, see Layer 2—LAN Switching Command Reference.
• The 802.1p priority of trusted packets on the RRPP ports must be configured, so that RRPP packets
take higher precedence than data packets when passing through the RRPP ports. For more
information about the qos trust dot1p command, see ACL and QoS Command Reference.
• Do not enable OAM remote loopback function on an RRPP port. Otherwise, it may cause a
temporary broadcast storm.
• Do not configure a port accessing an RRPP ring as the destination port of a mirroring group.
• Do not configure physical-link-state change suppression time on a port accessing an RRPP ring to
accelerate topology convergence. For more information, see the undo link-delay command (Layer
2—LAN Switching Command Reference).