H3C S5120-EI Series Configuration Manual

Also see for S5120-EI Series: Configuration guide Installation manual Configuration guide Configuration guide Operation manual

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H3C S5120-EI Series Configuration Manual Manual pdf 72 page image

63Step Command Remarks5. Display the currently activatedconfiguration information ofthe MST region.display stp region-configuration [ |{ begin | exclude | include }regular-expression ]Optional.Available in any view.The command output includesVLAN-to-instance mappings.For more information about thecommand, see Layer 2—LANSwitching Command Reference.6. Return to system view. quit Not required if the device isoperating in PVST mode.7. Enter RRPP domain view. rrpp domain domain-id N/A8. Configure protected VLANsfor the RRPP domain.protected-vlan reference-instanceinstance-id-listBy default, no protected VLAN isconfigured for an RRPP domain.NOTE:When configuring load balancing, you must configure different protected VLANs for different RRPPdomains.Configuring RRPP ringsWhen configuring an RRPP ring, you must make some configurations on the ports connecting each nodeto the RRPP ring before configuring the nodes.RRPP ports (connecting devices to an RRPP ring) must be Layer-2 Ethernet ports or Layer-2 aggregateinterfaces 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 removeports from the aggregation group corresponding to the interface.Configuring RRPP portsPerform 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 enablecommands, see Layer 2—LAN Switching Command Reference.• The 802.1p priority of trusted packets on the RRPP ports must be configured, so that RRPP packetstake higher precedence than data packets when passing through the RRPP ports. For moreinformation 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 atemporary 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 toaccelerate topology convergence. For more information, see the undo link-delay command (Layer2—LAN Switching Command Reference).