Nexus Newbie already stuck

[BluffPlace]

My company just got a nexus 5548. I'm playing with it and trying to become familiar with this new O.S. One of my first issues is connecting this to another switch. I have a 3850 and I have them connected via 10gig transceivers. If I put the ports on both switched in access mode, I can ping each other. If I switch them over to trunk mode, I can ping each other. Just to be clear, when I ping across, the management ports are not connected. What am I doing wrong and I'm definitely going to look into ordering some books on Nexus O.S.

5548 config
version 5.0(3)N2(1)
feature telnet
no feature ssh
cfs eth distribute
feature interface-vlan
feature lacp
feature vpc
feature lldp

vrf context management
vlan 1

interface Vlan1
no shutdown
no ip redirects
ip address 10.29.68.8/24

interface Ethernet1/1

interface Ethernet1/2
description connect-to-MOB
switchport mode trunk
channel-group 1

interface mgmt0
ip address 10.200.200.11/24
line console
line vty

3850 config
interface GigabitEthernet0/0
vrf forwarding Mgmt-vrf
ip address 10.200.200.10 255.255.255.0
negotiation auto

interface TenGigabitEthernet1/1/4
description connect to 5500
!
interface Vlan1
ip address 10.29.68.9 255.255.255.0

 

[VinceWhirlwind]

SO they can ping each other, great - what's the actual issue?

 

[BluffPlace]

I cannot each other