Cisco Nexus 7000 Series - Limiting the Number of Redistributed Routes

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8-20
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 8 Configuring EIGRP
Configuring Advanced EIGRP
The following example shows how to redistribute BGP into EIGRP for IPv4:
switch# config t
switch(config)# router eigrp Test1
switch(config-router)# redistribute bgp 100 route-map BGPFilter
switch(config-router)# default-metric 500000 30 200 1 1500
switch(config-router)# copy running-config startup-config
Limiting the Number of Redistributed Routes
Route redistribution can add many routes to the EIGRP route table. You can configure a maximum limit
to the number of routes accepted from external protocols. EIGRP provides the following options to
configure redistributed route limits:
• Fixed limit—Logs a message when EIGRP reaches the configured maximum. EIGRP does not
accept any more redistributed routes. You can optionally configure a threshold percentage of the
maximum where EIGRP will log a warning when that threshold is passed.
• Warning only—Logs a warning only when EIGRP reaches the maximum. EIGRP continues to
accept redistributed routes.
• Withdraw—Start the timeout period when EIGRP reaches the maximum. After the timeout period,
EIGRP requests all redistributed routes if the current number of redistributed routes is less than the
maximum limit. If the current number of redistributed routes is at the maximum limit, EIGRP
withdraws all redistributed routes. You must clear this condition before EIGRP accepts more
redistributed routes.
You can optionally configure the timeout period.
BEFORE YOU BEGIN
Ensure that you have enabled the EIGRP feature (see the “Enabling the EIGRP Feature” section on
page 8-9).
Ensure that you are in the correct VDC (or use the switchto vdc command).
SUMMARY STEPS
1. config t
2. router eigrp instance-tag
3. redistribute {bgp id | direct | eigrp id | isis id | ospf id | rip id | static} route-map map-name
4. redistribute maximum-prefix max [threshold] [warning-only | withdraw [num-retries timeout]]
5. show running-config eigrp
6. copy running-config startup-config