Scheduled Data Center Maintenance.

Mon Mar 21 17:07:11 PST 2005 — Scheduled Data Center Maintenance. On Tuesday and Wednesday, 3/22-23/05, we will be doing maintenance on the power system in the Santa Rosa data center. This activity will be fully scripted and we anticipate no interruption in service of any kind. -John, Russ and Clay

Office phone system problems.

Wed Mar 16 11:13:36 PST 2005 — Office phone system problems. This morning we experienced a phone system circuit outage which prevented the Sonic.net offices from receiving any inbound calls. All of our dial-up and other Internet services were functioning normally during the outage, but our support department, billing and other service departments were not reachable by phone. We have corrected the problem and apologize for any inconvenience. -Support and Ops

Another brief DoS attack was targeted at one…

Tue Mar 15 09:55:12 PST 2005 — Another brief DoS attack was targeted at one of our DSL subscribers in Santa Rosa. The customer’s circuit has been disabled and their IPs have been blocked at our borders pending further investigation on our part. During this time DSL customers terminated in Santa Rosa may have experience slow performance and packet loss on their DSL circuits. -Kelsey and Nathan

DoS Attack.

Mon Mar 14 11:39:53 PST 2005 — DoS Attack. A brief DoS attack was targeted at our network, most likely at a DSL customer terminated in Santa Rosa. While the attack was underway DSL customers in Santa Rosa may have experienced some loss and latency and associated issues. It’s not believed that the attack had much affect if any on other parts of our network. -Nathan, John and Kelsey

Update on Network Event.

Thu Mar 10 18:11:34 PST 2005 — Update on Network Event. Upon further investigation we were able to determine that the problem was not caused by a failure inside our network but that our L2 transport provider between Santa Rosa and San Jose was flooding both ends of our circuit with more than 100kpps of broadcast traffic saturating the Juniper RE CPUs at both ends. The CPU congestion on these two routers lead to some of our internal and external BGP and IGP sessions flapping leading to general network instability. Once the source of the problem was isolated and the link shut down the network healed itself. -Kelsey, Nathan, John, Zeke and Jared.

Backbone Network Degradation.

Thu Mar 10 16:49:14 PST 2005 — Backbone Network Degradation. A little after 4 PM today our router in San Jose failed. This affected our outside connectivity until we could reroute traffic onto backup circuits in San Francisco a short time ago. We are working now to diagnose the router. -Nathan, Kelsey and John

Loss from Santa Rosa to San Jose.

Tue Mar 8 08:55:37 PST 2005 — Loss from Santa Rosa to San Jose. This morning at around 7:55am our link from Santa Rosa to San Jose started to show packet drops. We shut the circuit down at 8:15am, leveraging our redundant gigabit ethernet ring between Santa Rosa, San Francisco and San Jose to provide healthy service despite the failure. Users may have experienced degraded service during this period. -Nathan

GlobalPops to begin restricting mail server…

Fri Mar 4 22:17:43 PST 2005 — GlobalPops to begin restricting mail server access. Our national dialup service provider is going to begin blocking our customers’ access to any other email forwarding servers besides mail.sonic.net. For most customers, this means no change. For any customer who sends email through another server, for instance, the one at their workplace, they will have to switch to mail.sonic.net instead. Please contact Sonic.net Tech Support if you have any questions. -John and Russ

Enhanced Network Capacity and Resiliency.

Tue Mar 1 14:58:21 PST 2005 — Enhanced Network Capacity and Resiliency. On Friday, 2/25 we successfully installed and subsequently tested a new GigabitEthernet link between our 200 Paul Ave. POP in San Francisco and our POP at Equinix in San Jose. This new link has been added in an effort to increase capacity and network resiliency, ensuring continued high-speed delivery of traffic in the event of a single link failure within our network. -Network Operations

Multicast and IPv6 outage.

Mon Feb 21 17:11:22 PST 2005 — Multicast and IPv6 outage. The router which provides both multicast and IPv6 service is currently down. We’re working on restoring service, but don’t have an ETR at this time. -Nathan and John

Update Mon Feb 21 22:37:58 PST 2005 — Multicast and IPv6 service is restored. -Nathan