USB modems on Juniper J-series

Just seen something on the j-nsp list about using Multitech USB modems on the USB port of J-series routers, so I thought I’d post a link here for my future reference.

Juniper J-series upgrade to 8.4R2.3

We’ve just been in the lab trying to get a router upgraded from 8.2 to the latest 8.4R2.3, and have been having some issues… 

Undocumented (and broken) DXOS command

While trying to do an upgrade on a DX, I found a command that is not referenced in the command ref, or when you use the “?” at the CLI.

Upgrade of Juniper DX3200 to 5.2.4

Here’s what to do to get a DX application acceleration engine upgraded. Note that you will need serial access to the device in the later stages of this procedure:

Exclusive configuration in IOS and JunOS

Juniper certainly seem to lead Cisco in certain areas sometimes.

If there’s a chance that more than one person can be changing a router’s configuration at the same time, you can get yourself into trouble.

Juniper Releases the MX960 for “Carrier-Class” Ethernet

Juniper recently released a new product aimed at providing “carrier-class” ethernet – basically a highly port-dense box that runs JunOS, providing business ethernet and residential triple-play services.

At its core, it maintains the usual separation of control plane and forwarding plane that has long been established in Juniper M- and T-series routers and runs the same JunOS image that they do. Physical parts are not common, however. Routing engines are inserted in middle two slots at the front, rather than at the rear as in the M and T-series. The chassis can take a total of 48 10Gig ports or 480 1Gig ports and has a 960Gbps routing/switching capacity.

Juniper are keen to stress that this isn’t an ethernet switch in any shape or form, but it will perform some ethernet control plane functions, such as spanning-tree etc.

Fine-grained control over shaping, policing, multicast and so on is achieved by Juniper’s i-Chip in the forwarding plane of the box. It is also going to support graceful restart of routing protocols and non-stop routing for IGPs, BGP and MPLS VPNs/signalling.

Alongside all this, JunOS’s upcoming support for MPLS and Ethernet OAM, plus their enhancements to multicasting over MPLS is going to go a long way to building truly scalable multi-service networks.

Here’s the product page, complete with 3D virtual tour of the box.