Alaxala AX2500S, Руководство по устранению неисправностей

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3 Troubleshooting Functional Failures During Operation
48
No. Items to check and
commands Action
2 Make sure filtering and QoS
control are configured correctly. Certain packets might have been discarded by filtering or packets
might have been discarded by the QoS control shaper. Make sure
that the setting conditions for filtering and QoS control in the
configuration are correct, and that the shaper is used appropriately in
the system configuration.
For details about the procedure, see 3.15.1 Checking the filtering and
QoS control configuration information .
3 If multicast forwarding is not
performed, use the
show
mld-snooping
operation
command to check the MLD
snooping configuration.
Check the following:
- To check whether the MLD querier that monitors the group members
exists, make sure one of the following messages is displayed:
(1) If the MLD querier exists, the IP address of the MLD querier is
displayed.
MLD querying system: ff03::3
(2) If the MLD querier does not exist, nothing is displayed for
MLD
querying system:
.
- If the Switch is the MLD querier, make sure the sender IP address
has been set by using the
ipv6 mld snooping source
configuration command.
MLD querying system:
(3) If the sender IP address has not been set by the
ipv6 mld
snooping source
configuration command, nothing is displayed for
IP Address
:.
IP Address:
- If a multicast router is connected, check the
mrouter-port
setting.
> show mld-snooping 300
Date 2011/06/28 05:40:20 UTC
VLAN counts: 3
VLAN 300:
IP Address: ff03::3 Querier: enable
MLD querying system: ff03::3
Querier version: v1
Port (2): 0/1,0/7
Mrouter-port: 0/1
Group counts: 2
4 If multicast forwarding is not
performed, use the
show
mld-snooping group
operation command to check the
IPv6 multicast group address.
Check the following:
- Make sure the joined IPv6 multicast group address is displayed by
the
show mld-snooping group
command.
> show mld-snooping group 300
Date 2011/06/28 05:39:57 UTC
Total Groups: 8
VLAN counts: 3
VLAN 300 Group counts: 2
Group Address MAC Address Version Mode
ff03::11 3333.0000.0011 v1 -
Port-list: 0/7
ff03::10 3333.0000.0010 v1 -
Port-list: 0/7
# If the Switch is the MLD querier, the same address is displayed for MLD querying system
and IP Address . If any other switch is the MLD querier, the address displayed for MLD
querying system
is not the same as the address displayed for
IP Address
.