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Highlighted
Beginner

VXLAN Slowness

I set up VXLAN across 4 Nexus 9k - Most of the VXLAN traffic consists of video camera traffic. We notice that we can not access the cameras via HTTP and HTTPS across the VXLAN - We are able to get pass the loading page but video feed is not loading - Ping is working. We can access the cameras if we do not cross VXLAN.

- We enabled jumbo frame on uplinks of the N9k.

 

Has anyone else encountered this issue?

3 REPLIES 3
Highlighted
Cisco Employee

Re: VXLAN Slowness

what is the MTU on your L3 VNI as well as L2VNI?

Thanks
--Vinit
Highlighted
Beginner

Re: VXLAN Slowness

Please see the MTU values below:

 

vlan 1119

  name L3-vni-vlan-1

  vn-segment 39100

 

BK-Core-01# sh int vlan 1119

Vlan1119 is up, line protocol is up, autostate enabled

  Hardware is EtherSVI, address is  006b.f183.c6e7

  Description: L3-vni-1-routing  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

   reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive not supported

  ARP type: ARPA

  Last clearing of "show interface" counters 03:18:16

  L3 in Switched:

    ucast: 0 pkts, 0 bytes

 

BK-Core-01# sh int nve 1

nve1 is up

admin state is up,  Hardware: NVE

  MTU 9216 bytes

  Encapsulation VXLAN

  Auto-mdix is turned off

  RX

    ucast: 885613072 pkts, 107194231828 bytes - mcast: 60602953 pkts, 56660962806 bytes

  TX

    ucast: 1587294477 pkts, 1795414605166 bytes - mcast: 12393935 pkts, 2698843930 bytes

 

interface loopback1

  description VTEP/BGP

  no ip redirects

  ip address 10.20.4.20/32

  ip address 10.20.4.21/32 secondary

  ip router eigrp 100

  ip pim sparse-mode

 

 

loopback1 is up

admin state is up,

  Hardware: Loopback

  Description: VTEP/BGP

  Internet Address is 10.114.4.20/32

  MTU 1500 bytes, BW 8000000 Kbit, DLY 5000 usec

  reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation LOOPBACK, medium is broadcast

  Auto-mdix is turned off

    113558 packets input 7316434 bytes

    0 multicast frames 0 compressed

    0 input errors 0 frame 0 overrun 0 fifo

    0 packets output 0 bytes 0 underruns

    0 output errors 0 collisions 0 fifo

    0 out_carrier_errors

Highlighted
Cisco Employee

Re: VXLAN Slowness

Your L3VNI SVI is configured with default MTU. Could you please set it to 9216.

 

Thanks
--Vinit
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