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Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
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Chapter 8 Management Network Connectivity
Routing Table
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cpm0—The ONS 15310-MA SDH Ethernet interface (RJ45 LAN jack)
–
pdcc0—An RS-DCC interface, that is, an STMN trunk port identified as the RS-DCC
termination
–
lo0—A loopback interface
Table 8-5 shows sample routing entries for an ONS 15310-MA SDH.
Entry 1 shows the following:
• Destination (0.0.0.0) is the default route entry. All undefined destination network or host entries on
this routing table is mapped to the default route entry.
• Mask (0.0.0.0) is always 0 for the default route.
• Gateway (172.20.214.1) is the default gateway address. All outbound traffic that cannot be found in
this routing table or is not on the node’s local subnet is sent to this gateway.
• Interface (cpm0) indicates that the ONS 15310-MA SDH Ethernet interface is used to reach the
gateway.
Entry 2 shows the following:
• Destination (172.20.214.0) is the destination network IP address.
• Mask (255.255.255.0) is a 24-bit mask, meaning all addresses within the 172.20.214.0 subnet can
be a destination.
• Gateway (172.20.214.92) is the gateway address. All outbound traffic belonging to this network is
sent to this gateway.
• Interface (cpm0) indicates that the ONS 15310-MA SDH Ethernet interface is used to reach the
gateway.
Entry 3 shows the following:
• Destination (172.20.214.92) is the destination host IP address.
• Mask (255.255.255.255) is a 32-bit mask, meaning only the 172.20.214.92 address is a destination.
• Gateway (127.0.0.1) is a loopback address. The host directs network traffic to itself using this
address.
• Interface (lo0) indicates that the local loopback interface is used to reach the gateway.
Entry 4 shows the following:
• Destination (172.20.214.93) is the destination host IP address.
• Mask (255.255.255.255) is a 32-bit mask, meaning only the 172.20.214.93 address is a destination.
• Gateway (0.0.0.0) means the destination host is directly attached to the node.
Table 8-5 Sample Routing Table Entries
Entry Destination Mask Gateway Interface
1 0.0.0.0 0.0.0.0 172.20.214.1 cpm0
2 172.20.214.0 255.255.255.0 172.20.214.92 cpm0
3 172.20.214.92 255.255.255.255 127.0.0.1 lo0
4 172.20.214.93 255.255.255.255 0.0.0.0 pdcc0
5 172.20.214.94 255.255.255.255 172.20.214.93 pdcc0
