Specifications

Patches Issued Since the CS2/MMS2 Release
Software Superseded by CS3/MMS3 Software Release Notice for 5.0rev1
5-56 CS3 and MMS3
The resolution was to modify SPECTRUM so that GREY devices will
be continually pinged.
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The problem was the connection between the Frame Relay
subinterface and ATM subinterface was not resolved.
Some background information that will make the resolution more
understandable is as follows:
In 5.0rev1, we use FR DTE to resolve the conductivity of FR interfaces
down to the DLCI ports. During AD_ROUTE_TABLE_DISCOVERY
action, A router's IP routing table was read and saved to the
scratchpad for each interface appearing the IP routing table. The
scratchpad is indexed by interfaces index. But if a router has a FR
sub-interface configured and the FR sub-interface appears in the IP
routing table, we don't create a scratchpad for that FR sub-interface.
Instead, we create a scratchpad on the physical FR interface and save
all the FR sub-interface's information, such as ipRouteDest,
ipRouteNextHop and etc, into FR physical interface's scratchpad. By
doing this, we can pass all the routing info to FR DTE, which is
connected to the FR physical interface, and let DTE to resolve the
conductivities.
During router mapping process (AD_ROUTER_MAP action), we read
each entry from the router's scratchpad and map the interface in the
scratchpad entry. Since FR sub-interfaces were not scratched by their
own IF index(all info was scratched under the FR physical IF), we
don't actually resolve each individual FR sub-interface. When
mapping the FR physical interface, we are actually dealing with the
map of this side DTE to the other side DTE. However, if a FR sub-
interface is "directly" connected to another non-FR interface, the
routing info of the non-FR interface will not be saved into the other
side DTE. So this connection couldn't be resolved during the FR DTE
mapping.
The resolution was to create a scratchpad for each FR sub-interface
which appears in the IP routing table and save the FR sub-interface's
routing info into the both FR physical and sub interface scratchpads.
So the FR DTE's can still be mapped, and the FR sub-interface
scratchpad can also be used to resolve the conductivities if the other
side is not a FR sub-interface.