IETF 77 Ahaheim, California NOC Report Eric Thompson & Ray Irwin Swisscom Event Services

Upstream Connectivity Physical Circuits –Primary: 100Mbps via Dedicated Link Purchased from XO (1GigE Link, rated limited) –Backup path is 40Mpbs via Microwave Link Purchased from Covad IPv4 Connectivity from both providers IPv6 Connectivity from only XO –Redundacy provided by ISC via IPv6 Tunnel Peak traffic of ~63Mbps, 5 Minute average

Coverage Areas Swisscom is providing wired and wireless coverage throughout the meeting areas –IETF meeting areas on the 2 nd, 3 rd and 4 th floors have wireless connectivity. –Select IETF meeting rooms and the terminal room have wired connections Swisscom and the Hotel have partnered to extend network through the hotel – 1 st floor lobby area – guest rooms

Network Usage (External) XO 100Mbps Circuit

Terminal Room Usage Hourly Head Count

Wireless 75 Cisco 1242 Lightweight Access Points –Manager via Cisco 4404 Wireless LAN Controller running version IOS 5 Wireless SSIDs  ietf (open a/b/g)  ietf-sec (secured a/b/g)  ietf-a-only (open a)  ietf-sec-a-only (secured a)  ietf-ipv6-only (open a/b/g)

Total Associations Daily Peak Association per SSID

Network Issues Critical Failure of the backup router –Tuesday Morning the backup router failed due a processing engine failure Caused major IPv4 routing failure as secondary and primary routers each tried to take control Disruption appeared to be isolate to the IPv4 processes –Backup circuit was moved to primary router to restore external connectivity redundancy –Replacement router is on-site and will be placed into service tonight

Wireless Network Issues Wireless Clients are experiencing “Pauses” –Excessive drops while connected to the ietf SSID –Version mismatch between Wireless Lan Controller on Event Network and Hotel network. –Most issues demonstrated as related to QOS packet scheduling between the client and the AP. –Due to the high percentage of non-windows clients at this event, disabling QOS on the client is not a viable workaround

Network Operations Center Staff Swisscom Eric Thompson Ray Irwin Ron Dickson Chris Bennett Allison Fahs IETF Volunteers Jim Martin Chris Elliott Bill Fenner Joel Jaeggli Bill Jensen Karen O'Donoghue