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Protocol Specification Changes from -05 to -06

Protocol Specification Changes from -05 to -06. Donald Eastlake 3 rd +1-508-786-7754 Donald.Eastlake@motorola.com. Change List.

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Protocol Specification Changes from -05 to -06

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  1. Protocol SpecificationChanges from -05 to -06 Donald Eastlake 3rd +1-508-786-7754 Donald.Eastlake@motorola.com Protocol Draft -05 to -06

  2. Change List • Change "V" field to be a 2-bit version fields followed by 2 reserved bits. Make corresponding changes to eliminate the inclusion in the header of frame analysis indicating type of multi-destination pruning which is proper for frame. Make corresponding changes in IANA Considerations. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | V | R |M|Op-Length| Hop Count | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Egress RBridge Nickname | Ingress RBridge Nickname | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Protocol Draft -05 to -06

  3. Change List • The Inner.MacDA for TRILL IS-IS frames is changed to a second multicast address: All-IS-IS-RBridges. IEEE Allocation Considerations, pseudo code, etc., are correspondingly changed. • Expand Security Considerations by referencing RFC 3567 (IS-IS Cryptographic Authentication) and indicating that TRILL enveloping may reduce the effectiveness of TRILL-ignorant firewall functionality. • Note in Section 6 that bridges can hide slow links and make it harder from RBridges to determine the cost of an Rbridge to RBridge hop. Protocol Draft -05 to -06

  4. Change List • Change to one DRB per physical link which dictates the inter-RBridge VLAN for the link, appoints forwarders per VLAN, can be configured to send Hellos on multiple VLANs, etc., as described by Radia • Add material noting that replacement of bridges by RBridges can cause connectivity between previously isolated islands of the same VLAN. • Pseudonode Changes as described by Radia. • Add a minimal management by SNMP statement to Section 2. Protocol Draft -05 to -06

  5. Change List • Extensive updates to pseudo code. Was unchanged from -04 in -05. Now up to date and more completed but still needs further work. • Note that the IS-IS native frame admission/emission criteria are sufficient so there is no need for a port to maintain the spanning tree state machine. Delete explicit requirement to process TRILL frames arriving on a port even if the port implements spanning tree and is in spanning tree blocked state. • Drop recommendation to set "bridge" flags in some 802.1AB frame fields. • Miscellaneous minor editorial changes. Protocol Draft -05 to -06

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