Cabletron Systems SmartSwitch 04-0053-01 User Manual

Also see for SmartSwitch 9A100: User guide Upgrade instructions Installation and setup guide

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Cabletron Systems SmartSwitch 04-0053-01 User Manual Manual pdf 54 page image

3-10 SmartSwitch ATM User GuideManaging Parallel PNNI Links PNNI RoutingUse the set pnniinterface command to set the administrative weight of a physical link originating from a particularport. The following, is an example of increasing the administrative weight for CBR call setups through the physicallink on port 7a1:SmartSwitch # set pnniinterfacePortNumber() : 7a1 — Link on port 7a1AdminWtCBR(5040) : 100 — Set the weight for CBR connections higher on this linkAdminWtRTVBR(5040) :AdminWtNRTVBR(5040) :AdminWtABR(5040) :AdminWtUBR(5040) :AggregationToken(0) :RccServCategory(NRTVBR) :RccServCategory(NRTVBR) :SmartSwitch #3.3.1 Aggregation TokensAn aggregation token is associated with each physical PNNI link. The value of the token determines how a physicallink is advertised to the rest of the network. By default, all physical links (even parallel links) use an aggregation tokenof zero (0). When physical PNNI links have the same token value, the links are represented as a single logical linkwithin the parent peer group. For example, no matter how many physical links connect peer groups A and B, they arerepresented within the parent group as a single logical link. Using different token values for physical links causes thelinks to be represented (and advertised) as separate logical links within the parent group.Continuing with the earlier example of multi-level topologies, add a second physical PNNI link between peer groupsA and B by physically connecting switch SWA2 to switch SWB2. By setting the aggregation token of this physicallink to a value different from the physical link connecting switches SWA3 and SWB3, a second logical link appearswithin the parent group.For example, the physical link between SWA3 and SWB3 has an aggregation token value of zero (0). Use the setpnniinterface command to change the value of the aggregation token for the physical link between SWA2 and SWB2to one (1):SWA2 # set pnniinterfacePortNumber() : 7b2 — Link on switch SWA2 comes from this portAdminWtCBR(5040) :AdminWtRTVBR(5040) :AdminWtNRTVBR(5040) :AdminWtABR(5040) :AdminWtUBR(5040) :AggregationToken(0) : 1 — Change the value of the aggregation token from the defaultRccServCategory(NRTVBR) :SWA2 #Perform the same operation on switch SWB2 in group B:SWB2 # set pnniinterfacePortNumber() : 4a3 — Link on switch SWB2 comes from this portAdminWtCBR(5040) :AdminWtRTVBR(5040) :AdminWtNRTVBR(5040) :AdminWtABR(5040) :AdminWtUBR(5040) :AggregationToken(0) : 1 — Change the value of the aggregation token from the defaultRccServCategory(NRTVBR) :SWB2 #