Comtech EF Data CDM-760 - Manual (Page 181)

Ethernet-based Remote Product Management Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
7–23
Address / Address Range or Rule Reason
0.0.0.0 – 0.255.255.255 RFC 1700 broadcast messages
127.0.0.0 – 127.255.255.255 RFC 6761 loopback addresses
169.254.0.XXX Comtech internal modem use
169.254.1.XXX Comtech internal modem use
224.0.0.0 – 239.255.255.255 RFC 5771 multicast addresses
240.0.0.0 – 255.255.255.255 RFC 6890 reserves IP address (future)
aaa.XXX.XXX.XXX
aaa >= 128 and <= 191 subnet_mask < 16
aaa >= 192 and <= 224 subnet_mask < 24
RFC 791 classful networking addresses
Network bits cannot be all 0s or all 1s – i.e., a subnet
with a mask of /24 cannot have an IP address that
ends with .0 or .255
Reserved for network address and broadcast address
Click [Submit] to save.
• Mgmt MAC Address – This read-only field displays the modem management port (P0 |
MGMT) MAC address.
• Router / Bridge Working Mode – Managed Switch Working Mode indicates that the User
Data Ports (P1 through P4) are in a Managed Switch (Layer 2) mode. At present, Working
Mode is limited only to “Point to Point” mode. These drop-down lists are therefore non-
functional. DATA Ports P1 through P4 cannot be routed; however, if you require a routed
network, you can pass user traffic through the P0 | MGMT port and route the traffic.
Routed traffic will run at a lower PPS rate than bridged traffic. User traffic
passing through the P0 | MGMT port cannot exceed 105,000 PPS simplex or
150,000 PPS duplex compared to bridged traffic which can run at >190,000 PPS
simplex or >350,000 PPS duplex.
Port Configuration
Use this section to configure the Packet Processor’s data traffic and management ports. Click
[Submit] to save. Note the following:
Column Description
Port
This column lists the Packet Processor’s four available Ethernet data traffic
ports (P1 | DATA through P4 | DATA), and the P0 | MGMT port that is
reserved for M&C (Monitor and Control) purposes.
Speed
Use the drop-down list to select the port speed/duplex communications as
Auto, 100 Full, 100 Half, 10 Full, or 10 Half.
You are strongly advised to set all port speeds to Auto
whenever possible.
MAC Learning
Use the drop-down list to select MAC Learning as Disabled or Enabled.
Chapter 6. FRONT PANEL OPERATION Sect. 6.2.2.4.2.1
MAC Learning Operational States
Actual Negotiated Port Speed
This read-only column displays the port’s current operating speed when you
set the speed to Auto. “Link Down” indicates that the modem detects no valid
Ethernet device connection for that port.