The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] [PWE3] question in draft-ietf-pwe3-control-protocol-00.txt
Vijay, The C bit is used for the control word. Now the SAME targeted session between the the Ingress and Egress is used to signal various different VC types (like ATM AAL5 VCC/ Ethernet VLAN/HDLC/ PPP etc). Some of these would require control word and some of them might not. So the appropriate place for the C bit cannot be in the Session initialization. (unless of course you are creating seperate sessions for each VC type) Vatsa -----Original Message----- From: Vijayanand C - CTD, Chennai. [mailto:vijayc@ctd.hcltech.com] Sent: Friday, October 04, 2002 5:56 AM To: pwe3@ietf.org; mpls@uu.net Cc: luca@level3.net Subject: [PWE3] question in draft-ietf-pwe3-control-protocol-00.txt In the draft "draft-ietf-pwe3-control-protocol-00.txt", the control bit handling procedures have been elaborated in section 5.2. If an optional TLV is used to signal the configuration of C bit in the local nodes( Ingress and Eggress) at the time of targetted session establishment, both the nodes would know the C bit preferablity of the other and could avoid sending messages with wrong C bit which introduces complexity to the protocol. The optional TLV can be carried in the Initialisation message of LDP or in the keepalive messages. Regards, Vijay _______________________________________________ pwe3 mailing list pwe3@ietf.org https://www1.ietf.org/mailman/listinfo/pwe3 |
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