SLA probe IP-monitoring default route withdrawal

When an SRX is your wan facing router/firewall you might want to continuously test your connectivity. That is when the RPM probes do come in handy. The RPM probes are very similar to ip-sla from cisco but way more limited. On their own they just provide statistics which is nice but not very helpful. Juniper also has a feature called ip-monitoring that works in conjunction with the rpm probes and can take a result of an rpm probe and take some action on it. read more

ex3300 – removing virtual chassis (autobonding)

The ex3300 has a feature out of the box  which is that specific ports are by default used for virtual chassis function. This might be handy in some situations but most of the time it is annoying and bit obscure. This short article will explain how to disable this feature completely and permanently. read more

Unlocking cisco devices for unsupported SFPs

Cisco as well as many other vendors locks their equipment to only work with their own branded SFPs. The problem is that none of the big vendors actually manufactures the modules themselves – they use 3rd parties like avago or finisar. This extremely shameful practice is wide spread so almost everyone does this – Cisco, Juniper, Brocade or NetApp all are guilty of this. One issue is price – the aforementioned companies are willing to ask you 10 or even 100 times more for a branded sfp under the pretense of supportability.  read more