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Trace: • 7050qx-32-r_script_and_user_guide_eos_4.33.1f
arista:switch:7050qx-32-r_script_and_user_guide_eos_4.33.1f

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Table of Contents

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

QSFP+ Ethernet Interface Configuration Each QSFP+ module Ethernet interface is configurable as a single 40G port or as four 10G ports.

The switch displays four ports for each interface. Each port’s status depends on the interface configuration: • The /1 port is active (connected or not connected), regardless of the interface configuration. • The /2, /3, and /4 ports are error-disabled when the interface is configured as a single 40G port; • all ports are active (connected or not connected), when the interface is configured as four 10G ports.

Example:

• On DCS-7050S-64, interface 49 is a QSFP+ interface. Its ports are listed as 49/1, 49/2, 49/3, and 49/4. Port status depends on the interface configuration:

— 40G port configuration: 49/1 is connected or not connected; 49/2, 49/3, and 49/4 are error-disabled.

— 4x10G port configuration: 49/1, 49/2, 49/3, and 49/4 status is connected or not connected.

The speed forced 40gfull command configures a QSFP+ Ethernet interface as a 40G port. The no speed forced 40gfull command configures a QSFP+ Ethernet interface as four 10G ports. These commands reset the forwarding agent, which disrupts traffic on all switch ports. These commands must be applied to the /1 port.

Unordered List ItemEnter Interface Ethernet configuration mode for port /1 of the QSFP+ Ethernet interface.

switch(config)#interface ethernet 49/1

Enter speed force 40gfull command:

switch(config-if-Et49/1)#speed forced 40gfull

Note: This step restarts the forwarding agent, which disrupts traffic on all switch ports. The agent may require more than a minute to restart.

Enter show interface status to confirm the change in configuration.

switch(config-if-Et49/1)#show interface status

To configure a QSFP+ Ethernet interface as four 10G port interfaces:

Enter Interface Ethernet mode for port /1 of the QSFP+ interface.

switch(config)#interface ethernet 49/1

switch(config-if-Et49/1)#

Enter no speed force 40gfull command.

switch(config-if-Et49/1)#no speed forced 40gfull

switch(config-if-Et49/1)#

Example: 

interface Port-Channel1
   description Link to 6400 IP: 172.25.25.1
   switchport mode trunk
   port-channel min-links 1
!
interface Port-Channel2
   description Link to sw 1 IP: 172.25.25.10
   switchport access vlan 528
   port-channel min-links 2
!
interface Port-Channel3
   description Link to sw 2 IP: 172.25.25.11
   switchport access vlan 529
   port-channel min-links 4

! 

interface Ethernet1/1
   description Link to 6400 IP: 172.25.25.1
   no speed forced 40gfull
   channel-group 1 mode active
!
interface Ethernet1/2
  description Link to 6400 IP: 172.25.25.1
  no speed forced 40gfull
  channel-group 1 mode active 
!
interface Ethernet1/3
  description Link to 6400 IP: 172.25.25.1
  no speed forced 40gfull
  channel-group 1 mode active
!
interface Ethernet1/4
  description Link to 6400 IP: 172.25.25.1
  no speed forced 40gfull
  channel-group 1 mode active
!
interface Ethernet13/1
   description Link 1 40Gbps - IP: 10.23.23.10/27
   speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
!
interface Ethernet14/1
   description Link 2 40Gbps - IP: 10.23.23.11/27
   speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
!
interface Ethernet15/1
   description Link 3 40Gbps - IP: 10.23.23.12/27
   speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
!
interface Ethernet16/1
   description Link 4 10Gbps - IP: 10.23.23.13/27
   no speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
!
interface Ethernet16/2
   description Link 5 10Gbps - IP: 10.23.23.14/27
   no speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
!
interface Ethernet17/1
   description Link 6 10Gbps - IP: 10.23.23.15/27
   no speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
!
interface Ethernet17/2
   description TIER2 NS2PMDF - IP: 172.18.0.6/27
   no speed forced 40gfull
   switchport
   switchport mode acc
   switchport access vlan 526
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

MTU 

interface Ethernet3
mtu 9214

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

SSH

DCS-7050QX-N(config-mgmt-ssh)#default ? 

authentication  Change authentication settings
cipher          Exclusive list of cryptographic ciphers for sshd to speak
comment         Up to 240 characters, comment for this mode
fips            FIPS settings
hostkey         Set hostkey related options
idle-timeout    Set idle session timeout(minutes)
ip              SSH IP configuration
ipv6            SSH IPv6 configuration
key-exchange    Exclusive list of key-exchange methods for sshd to speak
known-hosts     SSH Known Hosts public keys
log-level       Configure SSH daemon logging level
login           Set options related to logging in
mac             Exclusive list of MAC algorithms for sshd to speak
server-port     Change server port
shutdown        Disable sshd
tunnel          manage named SSH tunnel
vrf             Enter VRF sub-mode

DCS-7050QX-N(config-mgmt-ssh)#default

management ssh 

 idle-timeout 180
 authentication mode password
arista/switch/7050qx-32-r_script_and_user_guide_eos_4.33.1f.1745159723.txt.gz · Last modified: 2025/04/20 09:35 by aperez
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