Network Services

References:
Juniper MX Series (2nd Edition) - http://shop.oreilly.com/product/0636920042709.do
https://www.juniper.net/documentation/en_US/junos/topics/concept/network-services-mode-overview.html

Network Services:
The MX240, MX480, and MX960 series routers are able to operate with different types of line cards at the same time. For example, it's possible to have a MX240 operate with FPC1 using a DPCE-R line card while FPC2 uses an MX-MPC-R-B line card. There are many different variations of DPC, MPC, Ethernet, and routing options, which means that a chassis control feature called "network services" can be used to force the chassis into a particular compatibility mode.

If the network services aren't configured then by default when an MX chassis boots up, the FPC that is powered up first will determine the mode of the chassis. If the first FPC to be powered up is DPC, then only DPCs within the chassis will be allowed to power up. Alternatively, if the first powered up FPC is MPC, then only MPCs within the chassis will be allowed to power up.

The chassis network services can be configured with the "set chassis network-services" knob. There are four different options the network services can be set to:

• ip
  Allow all line cards to power up, except for DPCE-X. The "ip" hints toward being able to route, thus line cards such as the DPCE-X will not be allowed to power up, as they only support bridging.
• ethernet
  Allow all line cards to power up. This includes the DPCE-X, DPCE-R, and DPCE-Q.
• enhanced-ip
  Allow all Trio-based MPCs to be powered up. This is the default mode on the MX2K router.
• enhanced-ethernet
  Allow only Trio-based MPC-3D, MPC-3D-Q, and MPC-3D-EQ line cards to be powered up.
• all-ip & all-ethernet
  Both of these options are deprecated.

 

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