In this blog you can find articles about configuring various network equipment. Also, i have published comparison Table of network switches, where asic and packet buffer are listed.
Recently I got Juniper NFX250 for tests, will disassemble it and figure out … Read more >>
Today we’ll talk about an alternative to MCLAG from Juniper – Virtual Chassis. With Virtual Chassis, you can control multiple devices as a single device, have multiple Routing Engines in the stack, and use the graceful Routing Engine switchover (GRES) … Read more >>
Today I will be discussing VPLS configuration (Virtual Private LAN Services) on Huawei switches in a multi-vendor environment. I will test VPLS between Huawei S6700, Extreme X670 and Juniper MX960.
We will use Martini VPLS with LDP signaling … Read more >>
Today we will talk about the CPU protection from broadcast / multicast traffic on the Extreme X670 platform. These considerations are also correct for the X670V.
X670 family switches are built on the old Trident + and in comparison with … Read more >>
Recently, while setting up one more Juniper QFX5100 switch, i have run in to interesting case.
Since the switch was prepared as a classic TOR switch for IP fabric, it was necessary to place management to a routing-instance.
In Junos, … Read more >>
Today we will discuss ERPS configuration on Huawei and Extreme Summit.
ERPS is a great alternative to STP / MSTP / RSTP,
It has sub 50ms convergence, easy to configure and is supported on most modern switches.
In this example, … Read more >>
Consider an unusual case of bgp conditional advertisement triggered by lost of route.
Our task is:
Announce certain networks to backup uplink only if the default route from the main uplink is lost.
Both uplinks announce the default route – … Read more >>
Juniper EX4500 switches have lot of issues. One of them – packet buffer lack on microbursts when traffic flowing from 10G to 1G port .
This article describes Juniper EX4500 output discards troubleshooting on buffer lack.
The source of the … Read more >>
Describing the case when you need to selectively add the outer tag on certain Vlans and also transit some vlans intact. This can be done with selective QinQ on Juniper EX4500.
I will create transport vlan and specify what vlans … Read more >>
This article describes the case when you need to add a double tag on untagged traffic. Extreme XOS has this feature starting from software 16.2. This is supported on platforms:
– Summit X430, X440, X450-G2, X460, X460-G2, X480, X670, X670-G2, … Read more >>