Prezados estamos com um problema em nossa estrutura que e o seguinte:
Temos nexus 7000 com os nexus 2000, até ai tudo bem, temos configurados port-chennel com a feature VPC habilitada ai começa o problema nos port-channel temos interligado alguns servidores com CentOs e dentro desses servers temos algumas maquinas virtuais, o problema e que essas mauinas virtuais não comunicam com outrs maquinas virtuais na mesma vlan de outro servidor fisico, solução para isso nos desabilitamos os VPCs e a comunicação volta ao normal, importante resaltar que o port-channel não esta com o LACP pois o CentOs não suporta LACP.
Os senhores aqui ja passaram por isso tem alguma ideia o que pode esta ocorrendo? Segue aqui as configuis de um de nossos port-channel:
-------------------------------------------------------------------------------
interface port-channel207
description Pool01-Front-Xen001 - LAG
switchport
switchport mode trunk
flowcontrol send on
-----------------------------------------------------------------------------------
NP-BRETB-DEF002-NP-BRETB-ECOM02# sh int po207
port-channel207 is up
admin state is up,
Hardware: Port-Channel, address: d867.d9d6.d70f (bia d867.d9d6.d70f)
Description: Pool01-Front-Xen001 - LAG
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
reliability 255/255, txload 3/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is trunk
full-duplex, 1000 Mb/s
Input flow-control is off, output flow-control is on
Auto-mdix is turned off
Switchport monitor is off
EtherType is 0x8100
Members in this channel: Eth111/1/14
Last clearing of "show interface" counters never
38 interface resets
30 seconds input rate 5487560 bits/sec, 955 packets/sec
30 seconds output rate 13730480 bits/sec, 1592 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 6.01 Mbps, 803 pps; output rate 3.54 Mbps, 769 pps
RX
2739031494 unicast packets 8658 multicast packets 102364 broadcast packets
2739142516 input packets 1509338362602 bytes
778386796 jumbo packets 0 storm suppression packets
0 runts 0 giants 0 CRC 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
0 Rx pause
TX
5660228631 unicast packets 239252509 multicast packets 223015805 broadcast
packets
6122496945 output packets 6207053906410 bytes
3366477007 jumbo packets
0 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause
-------------------------------------------------------------------------------------------------------------------------------------
interface Ethernet111/1/14
description Pool01-Front-Xen001.2
switchport
switchport mode trunk
channel-group 207
no shutdown
---------------------------------------------------------------------------------------------------------------------
NP-BRETB-DEF002-NP-BRETB-ECOM02# sh interface Ethernet111/1/14
Ethernet111/1/14 is up
admin state is up,
Belongs to Po207
Hardware: 100/1000 Ethernet, address: d867.d9d6.d70f (bia d867.d9d6.d70f)
Description: Pool01-Front-Xen001.2
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is trunk
full-duplex, 1000 Mb/s
Beacon is turned off
Auto-Negotiation is turned off
Input flow-control is off, output flow-control is on
Auto-mdix is turned off
Switchport monitor is off
EtherType is 0x8100
Last link flapped 16week(s) 1day(s)
Last clearing of "show interface" counters never
31 interface resets
30 seconds input rate 5843328 bits/sec, 769 packets/sec
30 seconds output rate 2356736 bits/sec, 692 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 5.79 Mbps, 785 pps; output rate 3.60 Mbps, 776 pps
RX
2739090653 unicast packets 8660 multicast packets 102368 broadcast packets
2739201681 input packets 1509394738807 bytes
778420009 jumbo packets 0 storm suppression packets
0 runts 0 giants 0 CRC 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
0 Rx pause
TX
5660278032 unicast packets 239253615 multicast packets 223017221 broadcast
packets
6122548868 output packets 6207075369290 bytes
3366483811 jumbo packets
0 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
----------------------------------------------
Essa e somente de um dos 2 Nexus.
