11-22-2017 11:37 AM - edited 03-08-2019 12:51 PM
I have a 6509 attached to a pair of nx9000s via Ten Gig fiber which are in turn connected to four 3850s -- standalone, not stacked -- also by Ten Gig fiber. CDP shows that each device can see the next hop in the chain and VTP information propagates from the 6509 through the nx9000 to the 3850s. So far so good.
My problem arises because no IP traffic seems to pass through through the nx9000s. In the diagram below, Node B and Node C can talk to each other as expected if they are on the same VLAN. However, neither can talk to Node A nor can A talk to B or C. By "not talk" I mean that a sniffer on A sees no IP packets at all from B or C. Similarly, a sniffer on B or C sees nothing from A.
All of the connections between the switches are configured as trunks and appear to be working normally except for this puzzling lack of traffic. I guess there is some configuration required I just don't knew about yet but swlep me I cannot find it in the manuals.
11-22-2017 01:05 PM
Hello,
how are the 3850s connected to the NX9K, that is, which interfaces/adapters are you using ?
11-27-2017 07:58 AM - edited 11-27-2017 08:21 AM
@Georg Pauwen wrote:
Hello,
how are the 3850s connected to the NX9K, that is, which interfaces/adapters are you using ?
Each switch has a ten Gig connections to one each of the NX-9000s
3850:
Te1/1/3 connected trunk full 10G SFP-10GBase-SR
Te1/1/4 connected trunk full 10G SFP-10GBase-SR
nx9000a
Eth1/6 co-3850d connected trunk full 10G 10Gbase-SR-S
nx9000b
Eth1/6 co-3850d connected trunk full 10G 10Gbase-SR-S
11-22-2017 09:55 PM
Hi,
If you look in the switches, are you seeing any mac addresses? What version of code are you running on the switches?
Thanks
John
11-27-2017 08:04 AM
Hello,
Could you give us a show runing configuration of N9K and 3850?
11-27-2017 08:48 AM
@Xavillon wrote:
Hello,
Could you give us a show runing configuration of N9K and 3850?
Should be attached
11-28-2017 12:42 AM
what is the state of vlan when you do a show vlan?
11-27-2017 08:20 AM
@johnd2310 wrote:
Hi,
If you look in the switches, are you seeing any mac addresses? What version of code are you running on the switches?
Thanks
John
co-nx9000a# show mac address-table
Legend:
* - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC
age - seconds since last seen,+ - primary entry using vPC Peer-Link,
(T) - True, (F) - False, C - ControlPlane MAC
VLAN MAC Address Type age Secure NTFY Ports
---------+-----------------+--------+---------+------+----+------------------
* 1 188b.9dc0.a0d8 dynamic 0 F F Eth1/1
* 1 5897.bd2b.7de0 dynamic 0 F F Eth1/1
G - 00a3.8e6d.08e7 static - F F sup-eth1(R)
co-nx9000b# show mac address-table
Legend:
* - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC
age - seconds since last seen,+ - primary entry using vPC Peer-Link,
(T) - True, (F) - False, C - ControlPlane MAC
VLAN MAC Address Type age Secure NTFY Ports
---------+-----------------+--------+---------+------+----+------------------
* 1 188b.9dc0.a0d8 dynamic 0 F F Eth1/2
* 1 5897.bd2b.7de0 dynamic 0 F F Eth1/2
G - 00a3.8e6d.0987 static - F F sup-eth1(R)
show version on both 9000s says:
Software
BIOS: version 07.56
NXOS: version 7.0(3)I5(1)
BIOS compile time: 06/08/2016
NXOS image file is: bootflash:///nxos.7.0.3.I5.1.bin
NXOS compile time: 10/29/2016 6:00:00 [10/29/2016 13:46:41]
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