Network Device User's Guide

SNMP MIB Objects
E-9
3166-A2-GB20-10
November 1998
IP Group – “ipRouteMetric2” Object (ipRouteEntry 4)
The following values are displayed for the ipRouteMetric2 object. For a carrier
device designated as the IP Bus Master, ipRouteMetric2 is used to designate the
slot number of the next hop associated with this route if the destination is not
connected to the device. For carrier devices not designated as the IP Bus Master
or IP Bus Master devices in which the destination is connected to the device,
ipRouteMetric2 contains the slot number (0–15) of the carrier device. For
standalone devices, ipRouteMetric2 is not used and contains –1.
When adding a route to the routing table using SNMP, do not specify a value for
ipRouteMetric2.
IP Group – “ipRouteProto” Object (ipRouteEntry 9)
This object is a read-only object and may have the following values in the
DSU/CSU.
 other(1) – Temporary route added by IP.
 local(2) – Route added or modified as a result of user configuration via the
front panel.
 netmgmt(3) – Route added or modified by means of an SNMP set.
 icmp(4) – Route added or modified by Internet Control Management Protocol
(ICMP).
 rip(8) – Route added or modified by Routing Information Protocol (RIP) (or
similar proprietary protocol).
IP Group – “ipRouteAge” Object (ipRouteEntry 10)
This object is implemented as a read-only object in the DSU/CSU. In the
DSU/CSU, it reflects the value of the route’s time-to-live (in seconds). When
displays, a value of 999 represents a route that is retained permanently. For
temporary routes, the ipRouteAge object decrements over time. All routes added
via an SNMP set of the ipRouteTable are considered permanent routes. These
routes do not age, but will remain unless deleted via SNMP.
ICMP Group, MIB II
The ICMP Group objects are fully supported by the DSU/CSU.
TCP Group, MIB II
The TCP Group objects are fully supported by the DSU/CSU, with the exception
of the tcpConnState object, which will be read-only.
UDP Group, MIB II
The User Datagram Protocol (UDP) Group objects are fully supported by the
DSU/CSU.