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Aug
25
Network Maintenance - Fiber Span Migration
Posted by Kevin Stange on 25 August 2015 03:39 PM

We have scheduled network maintenance to migrate over to a new fiber span connecting 350 E Cermak Rd and 725 S Wells St in Chicago.  The purpose of this change is to reduce the complexity of the route the fiber takes between our facilities, which will improve reliability and signal quality, and simplify troubleshooting.

Date: Sunday, September 6th, 2015
Start Time: 12:00 AM CDT (GMT -5)
End Time: 2:00 AM CDT (GMT -5)
Maintenance Scope: Fiber span between 350 E Cermak Rd and 725 S Wells St

Customer Impact:

The fiber spans provide redundant connectivity between 350 E Cermak Rd (chi01 & chi02) and 725 S Wells St (chi18) data centers.  During the maintenance, we will decommission one of the spans and reconnect the equipment via a new span.  The other span in this ring, which was the subject of a repair on August 22nd, will not be modified.

The customer impact of this maintenance is expected to be minimal because there are redundant paths to all of the affected network components.  During the maintenance, overall capacity between the two sites will be reduced and redundancy may be limited.  At the initial interruption of the connection and at restoration, brief periods of packet loss or suboptimal routing may occur.

The actual migration steps that impact the network are expected to take 5 to 10 minutes to complete, but additional time has been allotted in case additional work or troubleshooting is required.

Customers using DWDM cross connects over this span will be impacted.  You will receive a separate notification if applicable.

If you need assistance during the maintenance, or if you have any questions about this planned work, please contact us via our helpdesk or by calling (312) 602-2689 or (888) 281-9449.


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Aug
20
Emergency Network Maintenance - Fiber Span Testing and Repair
Posted by Kevin Stange on 20 August 2015 11:06 AM

We have scheduled emergency network maintenance with our fiber vendor to test and repair a problem with a fiber span that connects 350 E Cermak Rd and 725 S Wells St in Chicago.

Date: Saturday, August 22nd, 2015
Start Time: 12:00 AM CDT (GMT -5)
End Time: 8:00 AM CDT (GMT -5)
Maintenance Scope: Fiber span between 350 E Cermak Rd and 725 S Wells St

Customer Impact:

The fiber span provides redundant connectivity between 350 E Cermak Rd (chi01 & chi02) and 725 S Wells St (chi18) data centers.  During the maintenance, the vendor will need to disconnect the fiber to test it, locate the damaged area, and repair the issue.

The customer impact of this maintenance is expected to be minimal because there are redundant paths to all of the affected network components.  During the maintenance, overall capacity between the two sites will be reduced and redundancy may be limited.  At the initial interruption of the connection and at restoration, brief periods of packet loss or suboptimal routing may occur.

The maintenance window is long due to vendor time requirements.  While testing the fiber should be a quick process, additional time will be required to locate and repair damaged segments.

If you need assistance during the maintenance, or if you have any questions about this planned work, please contact us via our helpdesk or by calling (312) 602-2689 or (888) 281-9449.


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Aug
4
Emergency Network Maintenance - Chicago - core4.chi02 backup RE replacement
Posted by Marc Schulz on 04 August 2015 02:07 PM

We have scheduled maintenance to replace the backup routing engine for one of our core routers in Chicago.

Date: Thursday, August 6th, 2015
Start Time: 12:00 AM CDT (GMT -5)
End Time: 2:00 AM CDT (GMT -5)
Maintenance Scope: Replace backup routing engine in core4.chi02

Customer Impact:

There is no expected impact to customers as the part being replaced is currently acting as the backup RE and is not in use. 

While the work itself is expected to be completed quickly, we are reserving extra time in case of problems. This will give us the ability to resolve issues without having to extend the maintenance window.

If you need assistance during the maintenance, or if you have any questions about this planned work, please contact us via our helpdesk or by calling (312) 602-2689 or (888) 281-9449.


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Jul
9
Security Advisory: OpenSSL Vulnerability
Posted by Kevin Stange on 09 July 2015 02:07 PM

A vulnerability has recently been disclosed in the OpenSSL library, affecting versions 1.0.1n and 1.0.2b and later.  This vulnerability could allow a malicious user to trick software into believing a certificate is trusted when it should not be. It has been assigned the ID CVE-2015-1793 in the Common Vulnerabilities and Exposures database.  This issue primarily affects client applications (such as web browsers and email clients) and services that validate client certificate chains (such as certificate-based VPN services, email encryption systems, and web sites that use a certificate to log you in), so most common server configurations are likely not affected.

We have evaluated supported operating systems and confirmed that CentOS 5, 6 and 7, and Debian Squeeze (6), Wheezy (7), and Jessie (8) are not impacted because they do not provide a version of OpenSSL that includes the affected feature.  Windows does not include OpenSSL software by default.

If you are running LiteSpeed web server versions 4.2.23, 5.0 or 5.0.1, you are affected.  You can see what version you are using by running the command:

/usr/local/lsws/bin/lshttpd -v

If you have one of the affected versions, we recommend that you upgrade.  If you are running 4.2.23 or older, please upgrade to 4.2.24 using the following command:

/usr/local/lsws/admin/misc/lsup.sh -v 4.2.24

If you are running version 5.0 or 5.0.1, please upgrade to 5.0.2 instead using this command:

/usr/local/lsws/admin/misc/lsup.sh -v 5.0.2

Please note that we do not recommend upgrading from the 4.2 series to the 5.0 series at this time.

For more information, please see the following references:

If you are running any other applications which provide their own copy of OpenSSL, we recommend that you check with the application vendor to see if you need to apply a security patch.

If you have any questions or need assistance, please contact us and we'll be happy to help.


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May
13
Emergency Maintenance: Various Internal Systems
Posted by Kevin Stange on 13 May 2015 05:48 PM

We will be performing maintenance to address security concerns related to a recent security disclosure by rebooting servers hosting various customer-facing and internal infrastructure systems to patch the vulnerability.

Date: Thursday, May 14th, 2015
Start Time: 12:00 AM CDT (GMT -5)
End Time: 2:00 AM CDT (GMT -5)
Maintenance Scope: Help Desk, Management Portal, Internal VPN, Phone System

Customer Impact:

No customer services or systems will be impacted. Access to phone support, IPMI and Internal Network VPN, help desk tickets, knowledge base articles, billing, bandwidth graphs, remote reboot control and account management will be unavailable at points during the maintenance period. We do not expect this work to require the entire maintenance period.

If you have any questions, please visit our help deskemail us, or call us at 1-888-281-9449 or 1-312-602-2689.  There will be no point at which both the help desk and phone systems are offline simultaneously.


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May
1
Network Maintenance: Equinix Fiber Path Maintenance
Posted by Kevin Stange on 01 May 2015 02:41 PM

We have scheduled maintenance on links between Equinix CH1 and our Chicago core network to improve link quality.

Date: Sunday, May 10th, 2015
Start Time: 12:00 AM CDT (GMT -5)
End Time: 2:00 AM CDT (GMT -5)
Maintenance Scope: Fiber path between Equinix CH1 (chi00) and Chicago core network (chi02)

Customer Impact:

We will be performing a hot cut to reduce the distance and complexity of a fiber path that connects our core network to service providers located in Equinix CH1.  This will affect multiple carrier circuits, and therefore will affect all customers using the Chicago network (chi01, chi02, chi18).  This work also affects specific customers with DWDM wavelengths to Equinix from Chicago facilities.  If you have one of these services, you will be notified directly as well.  It does not affect customers with dedicated fiber or layer 2 transport services from Equinix.

To minimize impact, all carrier sessions that will be affected will be gracefully turned down at the start of maintenance.  Once bandwidth has transferred to other providers, we will disconnect the fiber and cut it over to the new path.  Once all links are verified and stable, we will enable the carrier sessions again and bandwidth will return to its normal patterns.  While carriers are disabled, periods of suboptimal routing may occur.

While the work itself is expected to be completed quickly, we are reserving extra time in case of problems. This will give us the ability to resolve issues without having to extend the maintenance window.

If you need assistance during the maintenance, or if you have any questions about this planned work, please contact us via our helpdesk or by calling (312) 602-2689 or (888) 281-9449.


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