Generated Report for Unified

Unified - Internet2 IP Network Operations Report
02/06/2017 - 02/12/2017

Unified - Internet2 IP Network Operations Center
at Indiana University

New Connections

None

Upgrades

None

New Services

None

Unscheduled Outages Summary

Ticket Number	Customer Impact	Network Impact	*Title*	Outage Type	Source Of Impact	*Start Time (UTC)*	*End Time (UTC)*

12167	4-Normal	2-High	Brief Outage - I2 AL2S Backbone BATO-JACK	Human Error	Vendor	02/07/2017 8:59 PM	02/07/2017 9:00 PM
12185	2-High	2-High	Outage Resolved - I2 AL2S Backbone HOUH-HOUS	Hardware	Vendor	02/08/2017 4:44 PM	02/09/2017 1:53 AM

Unscheduled Outages Detail

Ticket No.:	12167:144
Subject:	Brief Outage - I2 AL2S Backbone BATO-JACK
Source Of Impact:	Vendor
Affected:	AL2S Backbone BATO-JACK IP Backbone ATLA-HOUS
Start Time:	Tuesday, February 7, 2017, 8:59 PM (2059) UTC
End Time:	Tuesday, February 7, 2017, 9:00 PM (2100) UTC
Description:	The above listed assets are available following a brief outage. Level(3) Engineers investigated the cause. However, the reason for the outage is undetermined.

Ticket No.:	12185:144
Subject:	Outage Resolved - I2 AL2S Backbone HOUH-HOUS
Source Of Impact:	Vendor
Affected:	AL2S Backbone HOUH-HOUS IP Backbone ATLA-HOUS & HOUS-LOSA
Start Time:	Wednesday, February 8, 2017, 4:44 PM (1644) UTC
End Time:	Thursday, February 9, 2017, 1:53 AM (0153) UTC
Description:	The above listed assets are now available. Maintenance has been completed. No further outages are expected.

Scheduled Maintenances Summary

Ticket Number	Customer Impact	Network Impact	*Title*	Maintenance Type	Source Of Impact	*Start Time (UTC)*	*End Time (UTC)*

12035	3-Elevated	1-Critical	Maintenance 2 of 2 Completed - I2 Optical DWDM System HART2-NEWY1118TH	Circuit	Vendor	02/08/2017 7:12 AM	02/08/2017 10:04 AM
12240	3-Elevated	2-High	Emergency Maintenance Completed - I2 AL2S Core Node ASHB (Card 11)	Software	Vendor	02/12/2017 8:03 AM	02/12/2017 8:08 AM

Scheduled Maintenances Detail

Ticket No.:	12035:144
Subject:	Maintenance 2 of 2 Completed - I2 Optical DWDM System HART2-NEWY1118TH
Source Of Impact:	Vendor
Affected:	DWDM System HART2-NEWY1118TH AL2S Backbones BOST-NEWY32AOA and HART2-NEWY32AOA IP Backbones HART2-NEWY32AOA and CLEV-NEWY32AOA
Start Time:	Wednesday, February 8, 2017, 7:12 AM (0712) UTC
End Time:	Wednesday, February 8, 2017, 10:04 AM (1004) UTC
Description:	The above listed assets are now available after Level(3) Communications replaced long haul cable in Bridgewater, CT. Maintenance has completed. This was maintenance window 2 of 2.

Ticket No.:	12240:144
Subject:	Emergency Maintenance Completed - I2 AL2S Core Node ASHB (Card 11)
Source Of Impact:	Vendor
Affected:	AL2S Backbone ASHB-WASH AL2S to IP Interconnect IP Backbone ASHB-ATLA IP Backbone ASHB-NEWY32AOA IP Backbone ATLA-CLEV Net+ Provider Blackboard (ASHB)
Start Time:	Sunday, February 12, 2017, 8:03 AM (0803) UTC
End Time:	Sunday, February 12, 2017, 8:08 AM (0808) UTC
Description:	The above listed assets are now available after Internet2 engineers rebooted FPC 11 on sdn-sw.ashb. Maintenance has been completed. No further outages are expected.

Downtime and Availability

Unified - Internet2 IP Core Nodes	Down Time		Reporting Period Availability		52 Week Availability
ASHB MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
ATLA MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
CHIC MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
CLEV MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
HOUS MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
KANS MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
LOSA MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
NEWY MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
SALT MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
SEAT MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
WASH MX960	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
rtsw0.sing1.net.internet2.edu	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
rtsw.sing2.net.internet2.edu	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%

Aggregate Unified - Internet2 IP Core Nodes	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%

NOTE: Numbers in italics represent downtime with scheduled maintenance excluded. Internet2's definition of scheduled maintenance is any anticipated outage announced at least 72 hours in advance of the outage start time.

Unified - Internet2 IP Backbone Circuits	Down Time		Reporting Period Availability		52 Week Availability
Layer3 AL3S Backbone ASHB-ATLA R&E VLAN 55199	0 hr 5 min	0 hr 0 min	99.95040%	100.00000%	98.45406%	98.75246%
Layer3 AL3S Backbone ASHB-ATLA Commodity VLAN 55204	0 hr 5 min	0 hr 0 min	99.95040%	100.00000%	99.43460%	99.64634%
Layer3 AL3S Backbone ASHB-CHIC R&E VLAN 55198	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Layer3 AL3S Backbone ASHB-CHIC Commodity VLAN 55203	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.71711%	99.81570%
Layer3 AL3S Backbone ASHB-CLEV R&E VLAN 55197	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.81343%	99.98392%
Layer3 AL3S Backbone ASHB-CLEV Commodity VLAN 55202	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.98732%	100.00000%
Layer3 AL3S Backbone ASHB-NEWY R&E VLAN 55201	0 hr 5 min	0 hr 0 min	99.95040%	100.00000%	99.31558%	99.54889%
Layer3 AL3S Backbone ASHB-NEWY Commodity VLAN 55206	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.59942%	99.71768%
Layer3 AL3S Backbone ASHB-WASH R&E VLAN 55200	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.87019%	99.92658%
Layer3 AL3S Backbone ASHB-WASH Commodity VLAN 55205	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.85411%	99.92072%
I2-CHIC-WASH-VLAN-12131	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.44880%	99.63348%
I2-CHIC-WASH-VLAN-12132	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.43006%	99.64899%
I2-ATLA-CLEV-VLAN-14832	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
I2-ATLA-CLEV-VLAN-14837	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
I2-ATLA-NEWY32AOA-VLAN-14833	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
I2-ATLA-NEWY32AOA-VLAN-14838	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
I2-CHIC-NEWY32AOA-VLAN-14831	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
I2-CHIC-NEWY32AOA-VLAN-14834	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
R&E 100G Backbone: I2-ATLA-CHIC-VLAN-09181	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.31521%	99.54303%
R&E 100G Backbone: I2-ATLA-HOUS-VLAN-09182	9 hr 10 min	9 hr 10 min	94.54365%	94.54365%	98.95095%	99.27585%
R&E 100G Backbone: I2-ATLA-WASH-VLAN-09179	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.61815%	99.82156%
R&E 100G Backbone: I2-CHIC-CLEV-VLAN-09180	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.62231%	99.88931%
R&E 100G Backbone: I2-CHIC-KANS-VLAN-09183	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.79659%	100.00000%
R&E 100G Backbone: I2-CLEV-NEWY32AOA-VLAN-09177	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.81172%	99.90444%
R&E 100G Backbone: I2-CLEV-WASH-VLAN-09178	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.52922%	99.88703%
R&E 100G Backbone: I2-HOUS-KANS-VLAN-09184	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.10006%	99.48759%
R&E 100G Backbone: I2-HOUS-LOSA-VLAN-09189	9 hr 9 min	9 hr 9 min	94.55357%	94.55357%	99.35570%	99.71106%
R&E 100G Backbone: I2-KANS-SALT-VLAN-09185	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.54133%	99.79564%
R&E 10G Backbone: I2-LOSA-PAIX-VLAN-23105	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.93491%	99.99640%
Commodity 10G Backbone: I2-LOSA-PAIX-VLAN-23106	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.93491%	99.99640%
R&E 100G Backbone: I2-LOSA-SALT-VLAN-09188	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.63707%	99.90236%
R&E 100G Backbone: I2-LOSA-SEAT-VLAN-09187	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.70425%	99.95572%
R&E 100G Backbone: I2-LOSA-SEAT-VLAN-09328	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.70425%	99.95572%
R&E 100G Backbone: I2-LOSA-WILC-VLAN-23103	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.97408%	100.00000%
Commodity 100G Backbone: I2-LOSA-WILC-VLAN-23104	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.97408%	100.00000%
R&E 100G Backbone: I2-NEWY32AOA-WASH-VLAN-09176	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.74569%	99.82762%
R&E 100G Backbone: I2-SALT-SEAT-VLAN-09186	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.79091%	99.99905%
R&E 100G Backbone: I2-SALT-SEAT-VLAN-09327	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.79110%	99.99924%
R&E 100G Backbone: I2-WASH-ATLA-VLAN-09179	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
R&E 100G Backbone: I2-ATLA-WASH-VLAN-09318	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.61815%	99.82156%
Legacy 10G Backbone: I2-ATLA-CHIC-10GE-05419	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.27679%	99.54170%
Legacy 10G Backbone: I2-ATLA-HOUS-10GE-05423	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	98.94812%	99.22078%
Legacy 10G Backbone: I2-ATLA-WASH-10GE-05251	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Legacy 10G Backbone: I2-ATLA-WASH-10GE-09142	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.71295%	99.84503%
Legacy 10G Backbone: I2-CHIC-CLEV-10GE-08891	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.82554%	99.88949%
Legacy 10G Backbone: I2-CHIC-KANS-10GE-05781	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Legacy 10G Backbone: I2-CHIC-KANS-10GE-05976	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.80302%	99.99622%
Legacy 10G Backbone: I2-CLEV-NEWY32AOA-10GE-08894	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Legacy 10G Backbone: I2-CLEV-WASH-10GE-08889	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.89650%	99.98335%
Legacy 10G Backbone: I2-HOUS-KANS-10GE-05560	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.27471%	99.49024%
Legacy 10G Backbone: I2-HOUS-KANS-LAG-08934	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Legacy 10G Backbone: I2-HOUS-LOSA-10GE-05559	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.60358%	99.84692%
Legacy 10G Backbone: I2-KANS-SALT-10GE-05566	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.56271%	99.71938%
Legacy 10G Backbone: I2-KANS-SALT-LAG-08935	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.77483%	99.81229%
Legacy 10G Backbone: I2-LOSA-PAIX-10GE-05853	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.93491%	99.99640%
Legacy 10G Backbone: I2-LOSA-SALT-10GE-05563	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.92185%	100.00000%
Legacy 10G Backbone: I2-LOSA-SEAT-10GE-05564	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.67700%	99.86906%
Legacy 10G Backbone: I2-LOSA-SEAT-10GE-05572	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Legacy 100G Backbone: I2-LOSA-WILC-100GE-23893	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	100.00000%	100.00000%
Legacy 10G Backbone: I2-NEWY32AOA-WASH-10GE-07612	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.79772%	99.87852%
Legacy 10G Backbone: I2-SALT-SEAT-10GE-05565	0 hr 0 min	0 hr 0 min	100.00000%	100.00000%	99.89233%	99.99905%

Aggregate All Unified - Internet2 IP Backbone Circuits	18 hr 34 min	0 hr 15 min	99.81883%	99.82127%	99.70947%	99.84349%

Upcoming Scheduled Maintenances

Ticket No.:	12158:144
Subject:	Maintenance 2 of 4 Update - I2 Optical Circuit GLOBAL-LOND-WASH2-100GE-01601
Affected:
Start Time:	Wednesday, February 22, 2017, 5:00 AM (0500) UTC
End Time:	Wednesday, February 22, 2017, 10:00 AM (1000) UTC
Description:	Please note the updated affected The above will be unavailable while TATA Engineers perform work to install new optical fiber. An outage of up to 3 hours is anticipated, however, the entire window is reserved. This is maintenance window 2 of 4.

Ticket No.:	12210:144
Subject:	Maintenance - I2 AL2S Core Node MINN
Affected:	AL2S Core Node MINN AL2S Backbone EQCH-MINN, KANS-MINN, MINN-MISS2 Net+ Provider Code 42
Start Time:	Wednesday, February 22, 2017, 6:00 AM (0600) UTC
End Time:	Wednesday, February 22, 2017, 12:00 PM (1200) UTC
Description:	The above listed assets will be unavailable while electrical contractors perform node maintenance. An outage is expected; however, the entire window is reserved. All connections to the Core Node will be affected.

Ticket No.:	12018:144
Subject:	Maintenance 1 of 2 - I2 Optical DWDM System CHIC-INDI
Affected:	DWDM System CHIC-INDI AL2S Backbone CHIC-INDI IP Backbone ATLA-CHIC
Start Time:	Thursday, February 23, 2017, 5:00 AM (0500) UTC
End Time:	Thursday, February 23, 2017, 11:00 AM (1100) UTC
Description:	Please note corrected End time The above listed assets will be unavailable while Level(3) Communications conducts maintenance to repair fiber in Wolcott, IN. Outages are expected. The entire window is reserved. This is maintenance 1 of 2.

Ticket No.:	12159:144
Subject:	Maintenance 3 of 4 - I2 Optical Circuit GLOBAL-LOND-WASH2-100GE-01601
Affected:
Start Time:	Thursday, February 23, 2017, 5:00 AM (0500) UTC
End Time:	Thursday, February 23, 2017, 10:00 AM (1000) UTC
Description:	The above will be unavailable while TATA Engineers perform work to install new optical fiber. An outage of up to 3 hours is anticipated, however, the entire window is reserved. This is maintenance window 3 of 4.

Ticket No.:	12348:144
Subject:	Maintenance - I2 Optical DWDM System DETR-EQCH
Affected:	AL2S Backbone CLEV-EQCH AL2S Backbone ASHB-CHIC IP Backbone CHIC-CLEV IP Backbone ASHB-EQCH IP Backbone CHIC-NEWY32AOA IP Backbone CHIC-NEWY IP Backbone CHIC-CLEV IP Backbone ASHB-CHIC
Start Time:	Thursday, February 23, 2017, 5:00 AM (0500) UTC
End Time:	Thursday, February 23, 2017, 11:00 AM (1100) UTC
Description:	The above listed assets will be unavailable while Level(3) Communications relocate a cable in Niles, MI. An outage is expected. The entire window is reserved.

Ticket No.:	12362:144
Subject:	Maintenance - I2 Optical Member ESnet
Affected:	Member ESnet
Start Time:	Thursday, February 23, 2017, 4:00 PM (1600) UTC
End Time:	Thursday, February 23, 2017, 8:00 PM (2000) UTC
Description:	Member ESnet's Optical circuit ESNET-CHIC-NASH-100GE-07807 will be unavailable while ESnet Engineers perform maintenance. An outage of up to 30 minutes is expected, however the entire maintenance window has been reserved.

Ticket No.:	12022:144
Subject:	Maintenance 2 of 2 - I2 Optical DWDM System CHIC-INDI
Affected:	DWDM System CHIC-INDI AL2S Backbone CHIC-INDI IP Backbone ATLA-CHIC
Start Time:	Friday, February 24, 2017, 5:00 AM (0500) UTC
End Time:	Friday, February 24, 2017, 11:00 AM (1100) UTC
Description:	The above listed assets will be unavailable while Level(3) Communications conducts maintenance to repair fiber in Wolcott, IN. Outages are expected. The entire window is reserved. This is maintenance 2 of 2.

Ticket No.:	12160:144
Subject:	Maintenance 4 of 4 - I2 Optical Circuit GLOBAL-LOND-WASH2-100GE-01601
Affected:
Start Time:	Friday, February 24, 2017, 5:00 AM (0500) UTC
End Time:	Friday, February 24, 2017, 10:00 AM (1000) UTC
Description:	The above will be unavailable while TATA Engineers perform work to install new optical fiber. An outage of up to 3 hours is anticipated, however, the entire window is reserved. This is maintenance window 4 of 4.

Ticket No.:	12246:144
Subject:	Maintenance Tracking - I2 Optical Member CENIC
Affected:	Optical Member CENIC
Start Time:	Friday, February 24, 2017, 7:00 AM (0700) UTC
End Time:	Friday, February 24, 2017, 2:00 PM (1400) UTC
Description:	The above listed asset will remain available while CENIC engineers perform maintenance. No impact is expected. The entire window is reserved.

Ticket No.:	12416:144
Subject:	Maintenance 1 of 2 Update - I2 Optical Member NOAA N-Wave
Affected:	Member NOAA N-Wave
Start Time:	Wednesday, March 1, 2017, 5:00 AM (0500) UTC
End Time:	Wednesday, March 1, 2017, 11:00 AM (1100) UTC
Description:	Please note the updated affected circuits. The above listed assets will be unavailable while N-Wave Engineers perform hardware maintenance in Denver, CO. An outage is expected, and the entire maintenance window has been reserved. This is maintenance window 1 of 2.

Ticket No.:	12417:144
Subject:	Maintenance 2 of 2 - I2 Optical Member NOAA N-Wave
Affected:	Member NOAA N-Wave
Start Time:	Thursday, March 2, 2017, 5:00 AM (0500) UTC
End Time:	Thursday, March 2, 2017, 11:00 AM (1100) UTC
Description:	The above listed assets will be unavailable while N-Wave Engineers perform hardware maintenance in Denver, CO. An outage is expected, and the entire maintenance window has been reserved. This is maintenance window 2 of 2.

Ticket No.:	12138:144
Subject:	Maintenance Rescheduled - I2 AL2S Participant Atlantic Wave
Affected:	AL2S Participant Atlantic Wave
Start Time:	Sunday, March 5, 2017, 10:00 AM (1000) UTC
End Time:	Sunday, March 5, 2017, 1:00 PM (1300) UTC
Description:	Please note the new maintenance time The above listed asset will be unavailable while FLR Engineers perform maintenance on a core node. An outage is expected. The entire window is reserved.

Ticket No.:	12375:144
Subject:	Maintenance 1 of 2 - I2 AL2S Backbone MISS2-SEAT
Affected:	Backbone MISS2-SEAT Net+ Provider Code42 (SEAT)
Start Time:	Tuesday, March 7, 2017, 8:00 AM (0800) UTC
End Time:	Tuesday, March 7, 2017, 1:00 PM (1300) UTC
Description:	The above listed asset will be unavailable while Zayo Engineers perform maintenance. An outage is expected. The entire window is reserved. Backbone traffic will re-route during this maintenance. Workgroup administrators will receive notifications from OESS regarding circuits re-routed on the backbone. This is maintenance window 1 of 2.

Ticket No.:	12376:144
Subject:	Maintenance 2 of 2 - I2 AL2S Backbone MISS2-SEAT
Affected:	Backbone MISS2-SEAT Net+ Provider Code42 (SEAT)
Start Time:	Thursday, March 9, 2017, 8:00 AM (0800) UTC
End Time:	Thursday, March 9, 2017, 1:00 PM (1300) UTC
Description:	Please note corrected maintenance date. The above listed asset will be unavailable while Zayo Engineers perform maintenance. An outage is expected. The entire window is reserved. Backbone traffic will re-route during this maintenance. Workgroup administrators will receive notifications from OESS regarding circuits re-routed on the backbone. This is maintenance window 2 of 2.