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Deploying the Dell Force10 MXL into a Cisco Nexus Network Environment
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Te 1/31 128.216 128 200000 DIS 4000 32768 001e.c9f1.0153 128.216
Te 1/32 128.217 128 200000 DIS 4000 32768 001e.c9f1.0153 128.217
Te 1/43 128.228 128 2000 FWD 4000 28672 547f.ee6c.21c1 128.131
Te 1/45 128.230 128 2000 DIS 4000 32768 001e.c9f1.0153 128.230
Interface Bpdu
Name Role PortID Prio Cost Sts Cost Link-type Edge Filter Boundary
---------- ------ -------- ---- ------- ----------- ------- --------- ---- ------ --------
Po 1 Dis 128.2 128 200000 DIS 4000 P2P No No No
Te 1/1 Dis 128.186 128 2000 DIS 4000 P2P No No No
Te 1/2 Dis 128.187 128 200000 DIS 4000 P2P No No No
Te 1/3 Dis 128.188 128 2000 DIS 4000 P2P No No No
...
Te 1/30 Dis 128.215 128 200000 DIS 4000 P2P No No No
Te 1/31 Dis 128.216 128 200000 DIS 4000 P2P No No No
Te 1/32 Dis 128.217 128 200000 DIS 4000 P2P No No No
Te 1/43 Root 128.228 128 2000 FWD 4000 P2P No No No
Te 1/45 Dis 128.230 128 2000 DIS 4000 P2P No No No
MXL2#
Nexus MSTP and MXL MSTP – Remainder of Test Observations
After the Local Port Failover and Failback scenarios were observed, the following 4 scenarios were
also observed.
1) Failover: Uplink Failure Simulation (Uplink Fast). In this test a shutdown was issued on N5K1’s
interface 1/5. This caused MXL2 to place its interface 1/45 into a status of Discarding and its
interface 1/43 in to the Role of Root. This scenario was observed with only a single ping being
lost during the failover, indicating that the re-convergence took about 1 second
2) Failback: Uplink Failure Simulation (Uplink Fast). In this test a no shutdown was issued on
N5K1’s interface 1/5. This caused STP on MXL2 to place its interface 1/43 into a Role of
Alternate and its interface 1/45 in to the Role of Root since it has the lowest path cost to the