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ipae-minutes-92sep.txt
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1993-02-17
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INTERIM_MEETING_REPORT_
Reported by Robert Hinden/SUN
Minutes of the IP Address Encapsulation Working Group (IPAE)
This meeting of the IPAE Working Group took place on September 24, 1992
in a Video Conference between Mt. View, CA and Lincoln, MA
1. Reviewed Agenda Items.
2. Reviewed Action Items from Previous Meeting.
3. Review of Recent Work.
ICMP
Reviewed G. Chesson's ICMP extensions. Decided that an IPAE
redirect was necessary, but that special Destination unreachable
was not needed.
ACTION: Chesson to update work and write up mechanism to map ICMP
error messages between commonwealths assuming that sender includes
IPAE header in ICMP error message.
Addressing
Reviewed work of previous days addressing meeting.
Unicast Metro / Provider Address
- --------------------------------
1 1 6 24 32 32
+-+-+------+------------+----------------+----------------+
| |0| | /Metro | Site | |
|0|/| RSVD | City Code | |32bit IP Address|
| |1| | \Provider| Subscriber | |
+-+-+------+------------+----------------+----------------+
M C
M (Multicast) bit is 0 for Unicast, 1 for Multicast
C (IP Compatibility) bit is 0 for IPAE destination, 1 for IP destination
Multicast (Compatible w/ current IP Multicast)
- ----------------------------------------------
1 1 6 24 32 32
+-+-+------+------------+----------------+----------------+
| | | | | |
|1|1| RSVD | (unused) | 32bit Class D |
| | | | | IP Address |
+-+-+------+------------+----------------+----------------+
M C
1
Multicast (New Multicast Format)
1 1 6 8 80
+-+-+------+-----+----------------------------------------+
| | | |Flags| |
|1|0| RSVD | + | Multicast Group ID |
| | | |Scope| |
+-+-+------+-----+----------------------------------------+
M C
ACTION: Steve Deering to write IPAE addressing architecture and
hold follow addressing sub-group meeting to review writeup.
Commonwealth Router Discovery
Concluded that discovery mechanism proposed by John Moy/Proteon
would be fine.
ACTION: Hinden to get IP address assigned for Commonwealth router
discovery.
4. Close Outstanding Technical Issues
DNS SUPPORT
Discussed where changes to DNS would be necessary and which DNS
servers would have to support IPAE at each stage in the transition.
ACTION: Crocker to bring DNS experts into loop and write up details
for document.
Inter-Commonwealth Routing
Discussed and concluded that for provider based addressing, use
BGP4 with support for 96bit IPAE addresses. Metro based routing
some what harder.
ACTION: Deering to write up routing approach.
ACTION: Hinden to discuss w/Yakov Rekhter about adding support for
96-bit addresses to BGP4.
5. Transition Issues
32-BIT IP Address => Commonwealth Address Mapping
Discussed different approaches: Static table, pure DNS, and hybrid
consisting of background DNS collection to local server + real time
query by Commonwealth Router to local server.
ACTION: Hinden to write up static approach.
6. Implementation Plans and Schedule
SGI, Proteon, and Sun intend to build prototype IPAE
implementations. Minimum test configuration need was:
2
| |
IP-----| |------IP
| |
|---------(IP)-----(IPAE)-----(IPAE)------|
| |
IPAE---| |----IPAE
| |
Testing can be done with out building any new infrastructure. It
can be done using existing internet.
Implementation subgroup will be formed. Bob Gilligan agreed to
lead and coordinate.
ACTION: Gilligan to set up implementors meeting and develop testing
plan.
Next Meetings
o October 9, Video Conference (Mt. View and Lincoln)
o October 15, Video Conference (Mt. View and Lincoln)
3