Dear all,
I'm writing this post to publish a bug in eNSP related to Ethernet link negotiation between switches S5700.
Given the following lab...
The GE0/0/1 of S1 has been set with no auto negotiation, Speed 10Mb/s and half-duplex. The GE0/0/1 of S2 instead is configured with no auto negotiation, Speed 100Mb/s and full-duplex. See the following configuration.
[S1-GigabitEthernet0/0/1]display this
#
interface GigabitEthernet0/0/1
undo negotiation auto
speed 10
duplex half
#
return
[S2-GigabitEthernet0/0/1]display this
#
interface GigabitEthernet0/0/1
undo negotiation auto
speed 100
#
return
The expected behavior is that the link shouldn't go up. Instead we observe the contrary. See the following output
[S2]display interface Ethernet brief
PHY: Physical
*down: administratively down
(l): loopback
(b): BFD down
InUti/OutUti: input utility/output utility
Interface PHY Auto-Neg Duplex Bandwidth InUti OutUti Trunk
GigabitEthernet0/0/1 up enable half 4294967G 0% 0% --
1) Physical is up while it should be down
2) Auto-neg should be disabled according with the configuration
3) Duplex should be full
4) Bandwith value is absolutely wrong
I think these things should be fixed. Hope of being helpful.
Regards
Mirko Gilioli
Huawei Certified Systems Instructor
