Apple’s 2015 WWDC event included a great session on IPv6 & TCP changes coming with iOS 9. There is a related post to the IETF v6ops mailing list here. The...
The Docker/shipping container metaphor is overdone. I don’t think people have fully thought through what it might mean if containers do the same thing to computing as they did to shipping....
This article is Part 9 in a 12-Part Series. Part 1 - War Stories: Loops that Permanently Broke the Network Part 2 - War Stories: Switches Lying about Duplex Mismatches...
PyNOS v1.1 has been published. This is a python library that simplifies automating Brocade VDX systems. It is built on top of ncclient, and uses NETCONF to communicate with the VDX...
Fluke Networks recently released TruView Live, a subscription-based service for monitoring internal & external applications. Tests can run from Fluke-managed cloud locations, your own systems, or from dedicated hardware appliances. I’ve been...
Here’s a couple of quick hacks for working with Brocade Network Advisor. It’s unsupported, but you can run BNA on Ubuntu. You can also suppress the client-side JRE version mismatch...
I made a conscious decision to move away from full-time information security work. I retain an interest, and try to keep up with developments, but I don’t want to be...
I have been investigating a problem where an application would install on RHEL/CentOS, but not on Ubuntu. I tracked it down to a problem with shell scripts that assumed that /bin/sh...
HP IMC 7.1 E0303P13 does not support configuration backups for Brocade MLX & VDX devices. But they do have an extensible model, so it’s easy to add support. Here’s how...
ipv6-test.com is a useful site for testing IPv4 & IPv6 connectivity. It checks that v4 & v6 are working as expected, and reports your browser v4/v6 preferences. It does have one...
It’s 2015. ARIN is finally out of IPv4 addresses, more than 20% of Google users in the US are using IPv6…and vendors are still doing a half-assed job with IPv6...
Can we broadly separate Networking into Pioneers, Settlers, and Town Planners? I’ve been thinking about how to apply Simon Wardley’s PST model to networking. This leads to thinking about how...
