Beijing Huahuan Electronics H0EL-EthMux V8, Руководство пользователя

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Huahuan
Beijing Huahuan Electronics Co., Ltd.
H0EL-EthMux V8 User Manual V1.1 - 21-
Parameters Selections Explanation
SNMP
Port Number
The communication port of equipment and
SNMP management, the default SNMP port is
161
SNMP Trap
Address and
Port
SNMP Trap
Address
SNMP Trap
Port
Configure to equipment address and port number
that received Trap information
Set 5 address and ports at best, that is the
managed ports can send Trap information for 5
managed equipment at best.
SNMP Trap Address: need to be configured in
the first time, (initialized: 0) but it can be saved
and resumed.
SNMP Trap Port: default is 162 , also can be
saved and resumed
5.3.2 Service configuration indication
1
、
The actual output rate should correspond to the transmission bandwidth. If the
transmission bandwidth is smaller than actual uplink rate, E1 errors will occur. So we set the
maximum bandwidth of uplink line. When the uplink is higher than actual E1 rate, the difference
value is Ethernet access rate. When the uplink is lower than actual E1 rate, the Ethernet rate is 0.
For example
：
The transmission line can provide 6M bi-direction bandwidth. If we use two E1
channels, the local uplink should be set smaller than 6M.If not, the actual rate may be higher than
the transmission bandwidth. E1 errors may occur. In addition, sometimes the Ethernet bandwidth
is given by half duplex, such as 10M half duplex Ethernet bandwidth is about 5M in full duplex.
2
、
Bandwidth auto adaptation for E1 depends on the connection of E1.If there is no signal
loss for E1
，
system will allocate bandwidth for it. When E1 port is free, bandwidth will be
released, which can be used for local Ethernet access.
3
、
The MAC address of H0EL-EthMux V8 is fixed in the device. ARP is supported and the
remote end MAC address can be got through auto-negotiation. So it is unnecessary to set the
MAC address for the remote end, but IP address is needed.
NOTE ： Each device should have only one MAC address in the multicast area!
4
、
in order to improve the E1 data transmission service quality, according to Ethernet
provided transmission support IEEE 802.1Q and 802.1por not, H0EL-EthMuxV8 can set whether
to add VLAN tag with priority in the encapsulate process. According to 802.1Q/802.1p standard
to packing, the encapsulation overhead is bigger (more 4 bits is added in each Ethernet packet),
but it also can be transmit according to priority level. But to the network which doesn’t support
802.1p, it is no sense to set VLAN but increase unnecessary bandwidth, so here should set VLAN
to NO.
5.4 Network configuration