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4 mrpp troubleshooting, Mrpp, Roubleshooting – QTECH QSW-8300 Инструкция по настройке User Manual

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switch D configuration Task Sequence:

Switch(Config)#mrpp enable

Switch(Config)#mrpp ring 4000

Switch(mrpp-ring-4000)#control-vlan 4000

Switch(mrpp-ring-4000)#enable

Switch(mrpp-ring-4000)#exit

Switch(Config)#interface ethernet 1/0/1

Switch(config-If-Ethernet1/0/1)#mrpp ring 4000 primary-port

Switch(config-If-Ethernet1/0/1)#interface ethernet 1/0/2

Switch(config-If-Ethernet1/0/2)#mrpp ring 4000 secondary-port

Switch(config-If-Ethernet1/0/2)#exit

Switch(Config)#

33.4 MRPP Troubleshooting

The normal operation of MRPP protocol depends on normal configuration of each switch on

MRPP ring, otherwise it is very possible to form ring and broadcast storm:
Configuring MRPP ring, you’d better disconnected the ring, and wait for each switch

configuration, then open the ring.

When the MRPP ring of enabled switch is disabled on MRPP ring, it ensures the ring of the

MRPP ring has been disconnected.

When there is broadcast storm on MRPP ring, it disconnects the ring firstly, and ensures if

each switch MRPP ring configuration on the ring is correct or not; if correct, restores the ring,

and then observes the ring is normal or not.

The convergence time of MRPP ring net is relative to the response mode of up/down. If use

poll mode, the convergence time as hundreds of milliseconds in simple ring net, if use interrupt

mode, the convergence time within 50 milliseconds.

Generally, the port is configured as poll mode, interrupt mode is only applied to better

performance environment, but the security of poll mode is better than interrupt mode, port-

scan-mode {interrupt | poll} command can be consulted.

In normal configuration, it still forms ring broadcast storm or ring block, please open debug

function of primary node MRPP, and used show MRPP statistics command to observe states

of primary node and transfer node and statistics information is normal or not, and then sends

results to our Technology Service Center.