CHAPTER
23-1
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
23
Configuring UDE and UDLR
This chapter describes how to configure unidirectional Ethernet (UDE) and unidirectional link routing
(UDLR) on the Cisco 7600 series router. Release 12.2(18)SXE and later releases support UDE and
UDLR.
Note For complete syntax and usage information for the commands used in this chapter, refer to the Cisco IOS
Master Command List, Release 12.2SX at this URL:
http://www.cisco.com/en/US/docs/ios/mcl/122sxmcl/12_2sx_mcl_book.html
These sections describe UDE and UDLR:
• Understanding UDE and UDLR, page 23-1
• Configuring UDE and UDLR, page 23-3
Tip For additional information (including configuration examples and troubleshooting information), see the
documents listed on this page:
http://www.cisco.com/en/US/products/hw/routers/ps368/tsd_products_support_series_home.html
Understanding UDE and UDLR
These sections describe UDE and UDLR:
• UDE and UDLR Overview, page 23-1
• Supported Hardware, page 23-2
• Understanding UDE, page 23-2
• Understanding UDLR, page 23-3
UDE and UDLR Overview
Routing protocols support unidirectional links only if the unidirectional links emulate bidirectional links
because routing protocols expect to send and receive traffic through the same interface.
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