University of New Hampshire Interoperability Laboratory

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University of New HampshireInteroperability
Laboratory

• Bridge Functions Consortium
• Gerard Goubert

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Presentation Goals

• Virtual tour of the new facilities
• Group Test Period findings relating to RSTP and
  Link Aggregation.
• Current Bridge Functions Projects
• What next.

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Virtual tour of the new facilities
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Bridge Functions Area
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MPLS Area
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IP/Routing Area
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Gigabit Ethernet Area
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Fast Ethernet Area
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Fast Ethernet Area
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10 Gigabit Ethernet Area
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10 Gigabit Ethernet Area
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10 Gigabit Ethernet Area
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DSL Area
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Wireless Area
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Ethernet PMD Area
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Ethernet PMD Area
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iSCSI / FiberChannel Area
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iSCSI / FiberChannel Area
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DOCSIS Area
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DOCSIS Area
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Group Test Period Area
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Group Test Period Area
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And you ask how does all this get power?
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And you ask how does all this get power?
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More Everything

• Huge power everywhere
• 110v and 220v and DC
• Overhead Cable Trays everywhere
• Lab wide climate control
• Lab wide patching system allows directly
  connecting any point to any other point in the
  lab.

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This ends the Virtual tour

• Please keep your hands and feet inside the ride
  at all times
• When the ride stops you may disembark
• Moving right along

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Group Test period Findings

• RSTP
• Many implementations were not true RSTP (.1w)
  simply fast forwarding, or fast uplink
• No other majors issues discovered during the
  Group Test Event (yeah!)

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Group Test period Findings

• RSTP
• New test cases in the works
• Looking for interesting tests from anyone (IEEE
  participants, IOL members, etc.)
• More RSTP interop tests need to be developed
• RSTP conformance suite is fully developed and
  quite large
• RSTP conformance is being automated at this time.

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Group Test period Findings

• Link Aggregation
• Aggregations were established on one LP but not
  on the other LP.
• Reasons
• Some implementations had 1 or more fields byte
  reversed
• Other reasons that were not fully investigated
  due to time constraints
• Duplicated packets due to speed change
• Change in speed of one of the links caused
  various problems
• Duplicated frames
• Remote side aggregation breaks (stops
  aggregating)
• Some interesting local side recovery happens on
  some implementations
• Transient aggregations

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Group Test period Findings

• Link Aggregation
• New test cases discussed
• 2 separate aggregations on the same system (to 1
  and 2 target systems)
• Admin key variation (per port and per
  aggregation)
• Active vs. Passive LACP modes
• Gigabit Ethernet (only) and Fast Ethernet ports
  aggregating at 100Mbit (done some of this
  already)
• Hot standby mode
• IP traffic (high frame rate, varied IP)
• Removing links from an aggregation
• High (sustained) Traffic, using non-sequential
  addresses
• Same keys used on two different aggregations
• RSTP/STP and VLAN/GARP interaction

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Current Bridge Functions Consortium Projects

• Standards stuff
• Following 802.1s to fruition
• Following 802.1X
• BFC in house
• BYTE program
• Tcl/tk environment, can be run on any system
• Integrates with auto-expect (for configuration)
• Can be used for remote testing and automated
  testing
• SNMP controlled cable multiplexer (LanHopper,
  CrystalHopper)
• Web results
• With BYTE and all its dependencies in place
  members can run testing themselves

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What future development is planned?

• This is one of the multitude of reasons that the
  IOL is present at these IEEE meetings
• 802.1X
• 802.1aa
• 802.1ab
• Q-on-Q
• VPLS, IGMP snooping suites?
• Suggestions, comments?

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In Summary

• Virtual tour of the new UNH-IOL facilities
• RSTP findings from GTP
• Implementation issues
• Protocol Issues
• Link Aggregation findings from GTP
• Implementation issues
• Protocol issues
• New test cases
• Current Bridge Functions Consortium Projects
• 802.1s, 802.1X
• What future development is planned?

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Additional resources

• www.iol.unh.edu
• www.iol.unh.edu/consortiums/bfc
• www.iol.unh.edu/testsuites/bfc