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) … Читать дальше >>
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, … Читать дальше >>
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 – … Читать дальше >>
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 … Читать дальше >>
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, … Читать дальше >>
This article describes the case in which you need to configure ARP spoofing protection when clients are configured with static IP addresses.
On Huawei S5300 DAI feature is per-port based instead of Cisco-like per-vlan. This will greatly simplify implementation when … Читать дальше >>