Transcript BDL-UDL Load Balancing a.k.a Policy Routing

Operation BOF
husni
tokyo, 2003/06/21
Agenda
• Usage of UDL(15minutes)
• Redundancy of satellite routers(10minutes)
• IPv4 Address assignment policy(15minutes)
– request based
– return not used address -> use it in each satellite link
– each satellite link use /29
• multicast(10minutes)
– Let's use PIM
• policy routing(10minutes)
• Zebra
• Security
Multicast
• PIM on UDL:
– SFC, AIT, ASTI (4th week of July), ITB (after
7/2, in July), IOIT (need to check)
• PIM on c-band BDL:
– sfc-sat is ready for PIMD, but not operated
– USM: need assistance to configure
• No PIM on Ku-band BDL
Announce
UDL Usage Situation
• The UDL is getting fully utilized
• Need a clear policy for maintaining QoS
• Issues:
– Shared link
– SOI-ASIA use (lectures, sakurafubuki3rd)
– Commodity traffic
Toward The Best UDL Usage
• Classify traffic
– Multicast / Unicast
– Partners / SOI-ASIA
• Identify priority requirements
• Define QoS policy
• Technical issues
Traffic Classification
[S1] SOI-ASIA lectures
[S2] SOI-ASIA related traffic (web, etc.)
[S3] Sakurafubuki3rd
[P1] Policy routed traffic
[P2] UDL prefix’s generated traffic
Priority Considerations
• SOI-ASIA multicast traffic [S1][S3] is for
everyone
– not 24x7
• Policy routing [P1] is to be operational
• There is no need to generate unnecessary
traffic from UDL prefixes
– can be policy-routed easily [P2]
– limit the use to certain clients [S2]
QoS Policy Proposal
•
Priority order
1.
2.
3.
4.
•
•
[S1]
[S3]
[P1]
[P2][S2]
How much bandwidth?
Implementation schedule?
Technical Issues
• What software to use?
– DUMMYNET
– altq
• Partner’s experience?
What we want
• Priority control
– DUMMYNET
– Altq
• Traffic shaping
– Limit unicast when there is multicast
• Bandwidth reservation
Satellite Routers Redundancy
• Current:
– Cisco bridging mode (except SG: schedule Mid. July
~ Aug)
– sfc-sat serves as the single router (use 4-port
ethernet)
– P2P netmask /30
• Next:
– Cisco bridging mode (except SG)
– Add another sat router: sfc-sat2
– P2P netmask /29
Redundancy: Issues
Add sfc-sat2
IPv4 address usage
– some sites have low address utilization
Address Change Schedule
• JPN:
– /29 x 7
– Change /30 x 7 into /29 x 3
– Need /29 x 4 = /28 x 2
• DNS issues
–
–
–
–
–
–
USM: no problem
IOIT: no problem
AIT: no problem
ITB: no problem
ASTI: no problem
TP: no problem
Ku-band Address Change Plan
• NARA-AIT 24.232 /29
• NARA-ITB 24.224/29
• Relocate NAIST-SFC ATM P2P VLAN
(24.240/30)
• Grab ITB’s latter half (24.64/28)
• Move AIT to ITB’s latter half (24.80/28)
• Schedule (need to coordinate)
–
–
–
–
Naist: 2 weeks from now
AIT: wait for Yoo comes back from France
ITB: after 7/2
After 7/2, plan through ai3-ix@
C-band Address Change Plan
•
•
•
•
•
Needs /29 x 5
NUOL: reserve address, postpone action
ASTI: 26.96/29 (it’s up to SFC)
TP: 26.104/29 (it’s up to SFC)
USM:25.176/29 (no expected date for link to
come back, do it right after 7/2 is ok?)
• IOIT: 25.184/29 (it’s up to SFC)
• Schedule: after 7/2 (let’s work on schedule!)
C-band Address Change Plan
• Reclaiming, New prefix:
– 202.249.25.32/28 ASTI NOC
– 202.249.25.64/28 USM NOC
– 202.249.25.48/28 TP NOC
– 202.249.25.80/28 IOIT NOC
• Schedule: same time with satellite link
renumbering if it is convenient
Policy Routing
• ASTI: HTTP traffic; updates from biomirror (need specifics)
• ITB: no change on request
• IOIT: no request at this moment
Multicast
• PIMD on UDL: AIT, ASTI (July), IOIT (need
to check), ITB (July)
• PIMD on C-band BDL:
– sfc-sat is ready for PIMD
– USM needs assistance on PIMD
• No PIMD on Ku-band BDL
USM EGP Routing
• No issues in IPv4
AI3 Website
• No detailed from Jun
–
–
–
–
Events?
Activities?
Publications?
Kotaro will confirm with Jun
• SFC will give content example
– esp. in operational
– propose a template in July
• Need topology map from partners
– Want the latest version in July
– Please renew at site update session
• Operational information
– Topology map
– Tips
– Policy routing?
• Requests from Suguru
– Webdav, for sharing PPT
– Contact information (MoU, operators)
– For visitors:
•
•
•
•
•
Products and Publications
Mission statement
Organization structure
Contact info
Events
Web
• For US:
– Related organizations & contact points (APAN,
Internet2, Star*
– Holidays & important days in each country
– Operational information
• Persons:
– Kotaro : in charge for web remake?; confirm with Jun;
– Ayumi : helps kotaro
– Baba : design?
• Easy to update
• File uploading areas (webdav)