2021-07-18
Evaluation of an IP Fabric network architecture for CERN's data center

And another one CLOS design.
This stuff is not so modern, but quite interesting and illustrates some useful design approaches.

Evaluation of an IP Fabric network architecture for CERN’s data center

Read More

2021-07-15
Testing methodologies: ITU-T Y.1564 & RFC2544

Unfortunately, I often note that there is a huge gap in understanding of network performance testing methodology.
Almost every related case goes down to “It seems it was quite better earlier”. No metrics, no anamnesis, so it makes me sad each time.

Just to be more confident I’ve gone through these canonical documents. Will keep it in mind for reference.

ITU-T Y.1564: Ethernet service activation test methodology
RFC:2544: Benchmarking Methodology for Network Interconnect Devices

Read More

2021-07-12
Meeting with Segment Routing

Finally, I’ve got a chance to take a dive into Segment Routing concepts, operations, and other aspects.
I was labbing with the migration scenario which is described in “DAY ONE: MIGRATING TO SEGMENT ROUTING”.

Have got a lot of fun, recommended.

I’m going to setup SRv6 topology as well, once I get the time.

Juniper DAY ONE: MIGRATING TO SEGMENT ROUTING

Read More

2021-01-17
Getting in touch with RIFT

I’ve recently taken a closer look at RIFT(Routing in Fat Trees) protocol.

Some details below.

Read More

2020-11-18
Understanding Inter-AS L3VPN - Option A/B/C

One more time, I would refresh my tender memories about MPLS l3vpn options. By the way, I recently faced with D option again.

Read More

2017-10-13
Junos ® OS Routing Policies, Firewall Filters, and Traffic Policers Feature Guide

Read More

2017-08-28
Welcome to World of Tomorrow!

Light sadness, the hopeful manifest, trading of vision of future as is.

Read More

2017-05-03
Clarifying COS

Read More

2017-02-14
Validation Methodology

By the way, few epic black books about network testing/validation methodology from Ixia.

Ixia Black Book - Video over IP
Ixia Black Book - Advanced MPLS
Ixia Black Book - QoS Validation

Read More

2015-10-08
TaZmen Sniffer Protocol (TZSP)

TZSP comes from early times, embodied at Mikrotik RouterOS. Pretty good lowcost way to capture packets from remote site without direct L2 SPAN/RSPAN.

SYSTEM AND METHOD FOR REMOTE MONITORING IN A WIRELESS NETWORK

Read More