TAILIEUCHUNG - Networkers 2004

Over the last decade, the role and influence of emerging economies has risen enormously, both in terms of bilateral trade and direct investment. This issue focuses on the impact it is having on international development as we know it. | NETWORKERS 2004 Cisco Systems ADVANCES IN EIGRP RST-4300 RST-4300 9859_05_2004_X 2004 Cisco Systems Inc. All rights reserved. 1 Advances in EIGRP Scaling Enhancements Network Stability Enhancements Other Enhancements RST-4300 9859_05_2004_X 2004 Cisco Systems Inc. All rights reserved Copyright 2001 Cisco Systems Inc. All rights reserved. Printed in USA. SCALING ENHANCEMENTS RST-2310 9636_05_2004_c1 2004 Cisco Systems Inc. All rights reserved. Scaling Enhancements EIGRP Stubs Single Peering Over Parallel Links RST-4300 9859_05_2004_X 2004 Cisco Systems Inc. All rights reserved Copyright 2001 Cisco Systems Inc. All rights reserved. Printed in USA. EIGRP Stubs When a router running EIGRP loses its connection to a network it first searches for alternate loop free paths If it finds none it then sends queries to each of its neighbors looking for an alternate path router-a sho ip eigrp topo IP-EIGRP Topology Table RST-4300 9859_05_2004_X 2004 Cisco Systems Inc. All rights reserved. P 24 1 successors FD is 281600 via Connected Ethernet1 2 router-a show ip eigrp events Event information for AS 100 . 12 Active net peers 24 1 14 FC not sat Dmin met 4294967295 128256 15 Find FS 24 128256 18 Conn rt down 24 Ethernet 3 1 5 EIGRP Stubs If the neighbor has no path to this destination it replies The router then removes all references to this route from its local tables In large hub and spoke networks the hub routers have to build queries and process replies from each of the spokes This limits scaling router-a show ip eigrp events Event information for AS 100 1 NDB delete 24 1 . 12 Active net peers 24 1 14 FC not sat Dmin met 4294967295 128256 15 Find FS 24 128256 18 Conn rt down 24 Ethernet 3 1 RST-4300 9859_05_2004_X 2004 Cisco Systems Inc. All rights reserved 6 Copyright 2001 Cisco Systems Inc. All rights reserved. Printed in USA. .

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