Mypower
S4100
Troubleshooting
Maipu Confidential & Proprietary Information
Page
15
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124
Fault 4: The communication cannot be performed in one VLAN.
Possible Reasons
Judging Methods and Solutions
1
．
The VLAN is not
created.
Use the show vlan command to view whether the VLAN exists.
If no, create the VLAN manually.
2
．
Two ports of one
device are both UNI
ports or isolated
ports.
View whether the two ports are both UNI ports. If two ports of
one device are both UNI ports or isolated ports, they cannot
communicate with each other. You can use the port-type
command to modify the uni/nni attribute of the ports.
3
．
The ports connecting
the two devices send
the data of he VLAN.
One carries tag and
the other does not
carry tag.
Use the show run command to view the VLAN configuration of
the two ports. If one port sends the untag data (such as pvid or
hy vlan XX untag) and the other sends the tag data (such as
trunk vlan XX or hybrid vlan XX tag), the communication cannot
be performed in the VLAN. You can modify the two ports to
both send the tag data or untag data of the VLAN.
Fault 5: Configure multiple MAC VLANs and the system prompts error, but
the number of the configured MAC VLANs does not reach 1000.
Possible Reasons
Judging Methods and Solutions
The configured mac vlan
distributes the hardware
resources according to the
hash algorithm and as a
result, the hardware
resources are not enough.
According to hash algorithm, some MACs are distributed with
the fixed segment of MAC-VLAN resources by some rule. If the
foregoing MACs are distributed with the segment of resources
completely, the later MACs cannot be distributed with the
segment of MAC_VLAN resources, so the system prompts that
the resources are not enough. If the MAC_VLAN resources of
other MAC addresses that comply with the rule are idle, they
can be distributed continuously.
If the fault appears, you can delete the mac vlan configuration
that is not in use.
Fault 6: Two VRFs on one device are directly connected and cannot ping
each other.
Possible Reasons
Judging Methods and Solutions
By default, all configured
switch interfaces of the
system use one MAC
address.
The mode does not support that multiple interfaces of one
device are interconnected. For example, the L3 packets sent by
the VLAN1 interface need to be received the VLAN2 interface of
the same device. The packet is dropped because the source
MAC and the destination MAC are the same and the VLAN2
interface cannot receive the packet. In this case, you need to
use the mac-address command in the interface to specify the
different MAC addresses for VLAN interfaces so that the
interconnected VLAN interfaces use the different MAC
addresses.
