This is an old revision of the document!

Arista Switch:DCS-7050QX-32-R

DCS-7050QX-N(config-if-Et24/2)#show inventory
DCS-7050QX-N(config-if-Et32)#show interface ethernet 23/1-4 status

Breakout Interfaces

DCS-7050QX-N#show version
Arista DCS-7050QX-32-R
Hardware version:    02.11
Serial number:       JP354652567
System MAC address:  001c.73b2.2a71

Software image version: 4.13.7.3M
Architecture:           i386
Internal build version: 4.13.7.3M-2126951.41373M.1
Internal build ID:      6f0a27e9-328e-453c-a66c-927e4912171a

Uptime:                 16 weeks, 4 days, 15 hours and 46 minutes
Total memory:           3990492 kB
Free memory:            1647764 kB

configure terminal
interface Port-Channel1
lacp mode active  (or lacp mode passive)
port-channel load-balance src-dst-ip

interface EthernetX
channel-group 1 mode active

active: Enables LACP in active mode.
passive: Enables LACP in passive mode.
on: Static LAG without LACP negotiation.

interface Port-Channel1
switchport mode trunk
switchport trunk allowed vlan <vlan-list>

interface Port-Channel1
switchport mode access
switchport access vlan <vlan-id>

show interfaces port-channel
show lacp neighbor
show vlan

write memory

Example

configure terminal
interface Port-Channel1
switchport mode access
switchport access vlan 10
lacp mode active
exit

interface Ethernet1
channel-group 1 mode active
exit

interface Ethernet2
channel-group 1 mode active
exit

write memory

User password

configure
enable secret <your_password>
username admin secret StrongPassword123
username manager secret AnotherPassword456
username admin role network-admin
username manager role network-operator
end
write mem
copy running-config startup-config

Configure VLAN 1 interface

configure
interface vlan 1
ip address 172.16.28.36 255.255.254.0
no shutdown
ip default-gateway 172.16.28.1
ip route 0.0.0.0/0 172.16.28.1

show ip interface brief
show ip route

Enable Multicast Routing on the Switch

configure
ip routing
ip multicast-routing
Switch(config)# vlan 10
Switch(config-vlan)# ip igmp snooping
Switch(config)# interface vlan 10
Switch(config-if)# ip igmp snooping querier
Switch(config)# interface vlan 10
Switch(config-if)# ip pim sparse-mode

show ip igmp snooping
show ip mroute
show ip pim neighbors

Link Aggregation (LAG)

vlan 10
  name Users
vlan 20
  name Servers

# Enter global configuration mode
  configure terminal

# Create a LAG group (e.g., LAG group 1)
  interface Ethernet1/1-2  
# The physical interfaces you want to aggregate
  channel-group 1 mode active  
# Enable LACP (active mode)
  no shutdown
# Assign the LAG to a virtual interface
interface Port-Channel 1
  port-channel min-links 2
  description LAG to Aruba OCX Switch
  switchport
  switchport mode trunk
# Allow VLANs 10 and 20
  switchport trunk allowed vlan 10,20  
  no shutdown

interface Port-Channel2
  switchport
  switchport mode access
  switchport access vlan 10  # Assign VLAN 10
  no shutdown

# Save the configuration
write memory

show interfaces ethernet 1/1-2
show port-channel summary
show active

Enable LLDP

configure terminal
lldp run
write memory


interface Ethernet1/1
  lldp transmit
  lldp receive
  no shutdown
interface Ethernet1/2
  lldp transmit
  lldp receive
  no shutdown
interface Ethernet1/3
  lldp transmit
  lldp receive
  no shutdown
interface Ethernet1/4
  lldp transmit
  lldp receive
  no shutdown

show lldp neighbors
show lldp neighbors detail
show lldp
show lldp interface Ethernet1
debug lldp events
debug lldp packets
no debug all

Spanning Tree Protocol (STP)

configure terminal

# Enable Rapid STP (Recommended)
spanning-tree mode rapid-pvst

# OR enable traditional STP
# spanning-tree mode stp

# OR enable MSTP (for multiple VLAN support)
# spanning-tree mode mstp

write memory

spanning-tree vlan 1 priority 12288
spanning-tree vlan 500 priority 12288
spanning-tree vlan 501 priority 12288
spanning-tree vlan 502 priority 12288
spanning-tree vlan 503 priority 12288
spanning-tree vlan 504 priority 12288
spanning-tree vlan 505 priority 12288
spanning-tree vlan 506 priority 12288

For access ports (connected to endpoints like PCs/servers), use PortFast to speed up link transitions:

interface Ethernet1
  spanning-tree portfast
  no shutdown

This prevents unnecessary STP calculations when connecting non-switch devices.

spanning-tree vlan 1 priority 4096
spanning-tree vlan 10 priority 4096

This forces VLAN 1 and VLAN 10 to select this switch as the root.

interface Ethernet3
  spanning-tree bpdufilter enable
  spanning-tree bpduguard enable
  no shutdown

BPDU Filter: Stops sending/receiving STP packets on that port. BPDU Guard: Disables the port if it receives STP packets (useful on access ports).

show spanning-tree
show spanning-tree vlan 1
show spanning-tree interface Ethernet1

ip igmp snooping

configure terminal
ip igmp snooping
write memory
 
vlan 1
ip igmp snooping
vlan 500
ip igmp snooping
vlan 501
ip igmp snooping
vlan 502
ip igmp snooping
vlan 503
ip igmp snooping
vlan 504
ip igmp snooping

DCS-7050QX-N(config)#show ip igmp sno
   Global IGMP Snooping configuration:
-------------------------------------------
IGMP snooping                  : Enabled
Robustness variable            : 2
Report flooding                : Disabled

Vlan 1 :
----------
IGMP snooping                  : Enabled
IGMPv2 immediate leave         : Enabled
Multicast router learning mode : pim-dvmrp
IGMP max group limit           : No limit set
Recent attempt to exceed limit : No
Report flooding                : Disabled
IGMP snooping pruning active   : False
Flooding traffic to VLAN       : True
Vlan 500 :
----------
IGMP snooping                  : Enabled
IGMPv2 immediate leave         : Enabled
Multicast router learning mode : pim-dvmrp
IGMP max group limit           : No limit set
Recent attempt to exceed limit : No
Report flooding                : Disabled
IGMP snooping pruning active   : False
Flooding traffic to VLAN       : True

vlan 500
   ip igmp snooping querier
  ip igmp snooping querier address 192.168.1.1

interface Vlan500
   ip address 192.168.1.1/24
   ip igmp version 2
   ip pim sparse-mode

ip igmp version 3

show ip igmp snooping
show ip igmp groups
show ip igmp snooping querier

7050QX Series 10/40G Data Center Switches

Arista EOS version 4.15.3F

Quick Start Guide 7000 Series 1 RU-Gen 2 Data Center Switches

Quick Start Guide 7000 Series 1 RU-Gen 3 Data Center Switches

User guide Arista Extensible Operating System (EOS)

Firmware donwload

ceos_lab_4_33_1f.tar