coscp Link Derived Bundle Id

1.3.6.1.4.1.9.9.202.1.2.1.7

This object identifies the wavelength bundle to the remote switch that this link belongs to. All links with the same value of coscpLinkRemoteSwitchId and the same value of this object are aggregated and treated as a single logical link with a single control channel. The aggregated logical link that contains this link is shown in coscpBundleTable as the coscpBundleEntry with coscpBundleRemoteSwitchId value equal to the value of coscpLinkRemoteSwitchId and with coscpBundleId value equal to the value of this object. The value of this object is derived from the bundle identifier advertised by this switch in the OSCP (specified in coscpLinkConfigBundleId) and the bundle identifier advertised by the remote switch. The two switches on either end of the link run the same algorithm on the same information to determine common values of the derived bundle identifier. The derivation process is intended for minimal configuration as well as acceptable behavior in the face of misconfiguration. By default all links have the coscpLinkConfigBundleId value zero. Since all links have the same default value, the default behavior is to aggregate all links between two switches into a single logical link with derived bundle identifier value zero. In order to assign a non-default bundle identifier to a link between two switches, only one side needs to be configured with the non-default value. The coscpLinkConfigBundleId value zero indicates that the switch will use as the derived bundle identifier value whatever value the remote switch has. The algorithm for computing the value of the derived bundle identifier is: 1. If the two switches exchange identical values of the configured bundle identifier, that value becomes the derived bundle identifier. 2. If the configured bundle identifier value of one of the switches is zero and that of the other switch is non-zero, the non-zero value becomes the derived bundle identifier value. 3. If the configured bundle identifier values of the two switches are different and both non-zero, the link has been misconfigured and the derived bundle identifier value becomes zero.