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5-1
Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
5
Maintaining the Cisco uBR7225VXR Router
This chapter describes basic maintenance for the Cisco uBR7225VXR universal broadband router and
contains the following sections:
• Online Insertion and Removal, page 5-1
• Environmental Monitoring and Reporting Functions, page 5-2
Online Insertion and Removal
The cable interface line cards and network processing engine in the Cisco uBR7225VXR universal
broadband router support online insertion and removal (OIR). Technically, the Cisco uBR7225VXR
universal broadband router supports true OIR, or “hot swapping,” of cable interface line cards only when
exchanging cable interface line cards of the exact same type (for example, exchanging a
Cisco uBR-MC28U line card for another Cisco uBR-MC28U line card). Under these conditions, no
reload of the router is required.
You can remove and replace a cable interface line card with the same type of component without
interrupting the system. This function allows you to install and replace the same type of cable interface
cards while the router is operating.
Note To replace a cable interface line card with a different type of line card (for example, hot swapping from
a Cisco uBR-MC16U to a Cisco uBR-MC28U, you must copy your startup configuration to your running
configuration on the Cisco uBR7225VXR router to enable the interfaces on the new cable interface line
card.
Caution When you use OIR for different types of cable interface line cards (for example, a Cisco uBR-MC16U
line card replaced by a Cisco uBR-MC28U line card), you might have to reconfigure the interfaces, and
we highly recommend that you reload the router.
Detailed instructions for installing Cisco cable interface cards are contained in the document
Cisco uBR7200 Series Cable Interface Line Card Hardware Installation Guide at the following URL:
http://www.cisco.com/en/US/docs/interfaces_modules/cable/line_cards/installation/guide/mcxxfru.htm
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