Juniper Networks Warrior by Peter Southwick

Author:Peter Southwick [Peter Southwick]
Language: eng
Format: epub, pdf
Tags: COMPUTERS / Networking / Vendor Specific
ISBN: 9781449316624
Publisher: Juniper Networks
Published: 2012-11-12T16:00:00+00:00

OBM

We now have the customer configuration taken care of, so it is time for the out-of-band management (OBM) network.

Management of the network can be performed in-band or out-of-band. In-band management saves facilities and often used better transmission facilities, but suffers from survivability issues. If the network goes down, so does the management network—not a good situation for a carrier-class implementation. The OBM topology is shown in Figure 6-3.

Figure 6-3. OBM network

In keeping with the KISS philosophy, the configurations for the OBM network are simple—the management interfaces are set with a common addressing scheme that is accessible from the teleco’s internal network. The management interfaces are not part of the backbone OSPF network. Here is the MX configuration:

interface fxp0 { unit 0 { family inet { address 192.168.1.3/24; } } }

And here is the configuration for the EX switches:

interface me0 { unit 0 { family inet { address 192.168.1.4/24; } } } }

These addresses are reached by an EX switch that is carrying Layer 3 traffic and running the OSPF protocol on the area 0 domain. All interfaces can be reached from the comfort of the system administrator’s desk rather than from the high-noise environment of the equipment room. You have to love OBM.

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