Navigation & Basic Commands

Function	Cisco IOS/NX-OS	Arista EOS
Enter privileged mode	enable	enable
Enter configuration mode	configure terminal	configure terminal or conf t
Exit configuration mode	exit or end	exit or end
Show running config	show running-config	show running-config
Show startup config	show startup-config	show startup-config
Save configuration	copy running-config startup-config or write memory	write memory or copy running-config startup-config
Show version	show version	show version
Show interfaces	show interfaces	show interfaces
Show IP interfaces	show ip interface brief	show ip interface brief

Interface Configuration

Function	Cisco IOS/NX-OS	Arista EOS
Enter interface config	interface ethernet1/1	interface ethernet1
Set IP address	ip address 192.168.1.1 255.255.255.0	ip address 192.168.1.1/24
Enable interface	no shutdown	no shutdown
Disable interface	shutdown	shutdown
Set description	description "Link to Router"	description Link to Router
Set duplex	duplex full	speed forced 1000full
Set speed	speed 1000	speed forced 1000full
Configure trunk	switchport mode trunk	switchport mode trunk
Configure access port	switchport mode access	switchport mode access
Set access VLAN	switchport access vlan 10	switchport access vlan 10

VLAN Configuration

Function	Cisco IOS/NX-OS	Arista EOS
Create VLAN	vlan 10	vlan 10
Name VLAN	name Sales	name Sales
Show VLANs	show vlan	show vlan
Show VLAN brief	show vlan brief	show vlan brief
Configure SVI	interface vlan 10	interface vlan 10

Routing Configuration

Function	Cisco IOS/NX-OS	Arista EOS
Enable IP routing	ip routing	ip routing
Static route	ip route 0.0.0.0 0.0.0.0 192.168.1.1	ip route 0.0.0.0/0 192.168.1.1
Show routing table	show ip route	show ip route
Show ARP table	show arp	show arp
Configure OSPF	router ospf 1	router ospf 1
OSPF network statement	network 192.168.1.0 0.0.0.255 area 0	network 192.168.1.0/24 area 0
BGP configuration	router bgp 65001	router bgp 65001
BGP neighbor	neighbor 192.168.1.2 remote-as 65002	neighbor 192.168.1.2 remote-as 65002

Spanning Tree

Function	Cisco IOS/NX-OS	Arista EOS
Enable STP	spanning-tree mode pvst	spanning-tree mode mstp
Show STP	show spanning-tree	show spanning-tree
Set port priority	spanning-tree port-priority 128	spanning-tree port-priority 128
Set root priority	spanning-tree vlan 1 priority 4096	spanning-tree mst 0 priority 4096

Port Channel/LAG

Function	Cisco IOS/NX-OS	Arista EOS
Create port-channel	interface port-channel 1	interface port-channel 1
Add interface to channel	channel-group 1 mode active	channel-group 1 mode active
Show port-channel	show etherchannel summary	show port-channel
LACP configuration	lacp mode active	lacp mode active

Monitoring & Troubleshooting

Function	Cisco IOS/NX-OS	Arista EOS
Show interface counters	show interfaces counters	show interfaces counters
Show interface status	show interface status	show interfaces status
Show MAC address table	show mac address-table	show mac address-table
Show CDP neighbors	show cdp neighbors	show lldp neighbors (LLDP)
Show system uptime	show version	show uptime
Show memory usage	show memory	show system memory
Show CPU usage	show processes cpu	show processes top
Show logs	show logging	show logging
Clear counters	clear counters	clear counters
Clear MAC table	clear mac address-table	clear mac address-table

Access Control Lists

Function	Cisco IOS/NX-OS	Arista EOS
Create standard ACL	access-list 10 permit 192.168.1.0 0.0.0.255	ip access-list standard ACL-10
Create extended ACL	access-list 100 permit tcp any any eq 80	ip access-list ACL-100
Apply ACL to interface	ip access-group 100 in	ip access-group ACL-100 in
Show ACL	show access-lists	show ip access-lists

Quality of Service (QoS)

Function	Cisco IOS/NX-OS	Arista EOS
Create class-map	class-map match-all VOICE	class-map VOICE
Create policy-map	policy-map QOS-POLICY	policy-map QOS-POLICY
Apply service policy	service-policy input QOS-POLICY	service-policy input QOS-POLICY
Show QoS	show policy-map interface	show policy-map interface

System Management

Function	Cisco IOS/NX-OS	Arista EOS
Set hostname	hostname Router1	hostname Switch1
Set domain name	ip domain-name company.com	ip domain-name company.com
Configure DNS server	ip name-server 8.8.8.8	ip name-server 8.8.8.8
Set timezone	clock timezone EST -5	clock timezone EST -5 0
Configure NTP	ntp server pool.ntp.org	ntp server pool.ntp.org
Show clock	show clock	show clock

User Management

Function	Cisco IOS/NX-OS	Arista EOS
Create user	username admin password cisco123	username admin secret cisco123
Set privilege level	username admin privilege 15	username admin privilege 15
Enable password	enable password cisco123	enable password cisco123
Enable secret	enable secret cisco123	enable secret cisco123
Show users	show users	show users

SNMP Configuration

Function	Cisco IOS/NX-OS	Arista EOS
Enable SNMP	snmp-server community public ro	snmp-server community public ro
Set SNMP location	snmp-server location "Data Center"	snmp-server location "Data Center"
Set SNMP contact	snmp-server contact admin@company.com	snmp-server contact admin@company.com
SNMPv3 user	snmp-server user admin v3 auth md5 password	snmp-server user admin v3 auth md5 password

High Availability

Function	Cisco IOS/NX-OS	Arista EOS
HSRP configuration	standby 1 ip 192.168.1.1	N/A (Uses VRRP)
VRRP configuration	vrrp 1 ip 192.168.1.1	vrrp 1 ip 192.168.1.1
Show HSRP	show standby	N/A
Show VRRP	show vrrp	show vrrp

Key Differences & Notes

Arista EOS Specific Features:

• Zero Touch Provisioning (ZTP): show zerotouch
• CloudVision Integration: Built-in cloud management
• MLAG (Multi-Chassis LAG): mlag configuration
• EVPN/VXLAN: Native support with router bgp and interface vxlan
• Python Integration: python-shell for custom scripting
• Advanced Event Management: event-handler and event-monitor

Command Syntax Differences:

1. Subnet Masks: Cisco uses dotted decimal (255.255.255.0), Arista uses CIDR (/24)
2. Interface Naming: Cisco uses GigabitEthernet0/1, Arista uses Ethernet1
3. Configuration Mode: Both are similar but Arista has some unique modes
4. Show Commands: Generally similar but some output formats differ

Advanced OSPF Configuration

Function	Cisco IOS/NX-OS	Arista EOS
OSPF process ID	router ospf 1	router ospf 1
Router ID	router-id 1.1.1.1	router-id 1.1.1.1
Network advertisement	network 10.1.1.0 0.0.0.255 area 0	network 10.1.1.0/24 area 0.0.0.0
Interface OSPF	ip ospf 1 area 0	ip ospf area 0.0.0.0
OSPF cost	ip ospf cost 100	ip ospf cost 100
OSPF priority	ip ospf priority 255	ip ospf priority 255
OSPF authentication	ip ospf message-digest-key 1 md5 password	ip ospf message-digest-key 1 md5 password
Area authentication	area 0 authentication message-digest	area 0.0.0.0 authentication message-digest
Stub area	area 1 stub	area 0.0.0.1 stub
NSSA area	area 1 nssa	area 0.0.0.1 nssa
Default route injection	default-information originate	default-information originate
Redistribute static	redistribute static	redistribute static
Show OSPF database	show ip ospf database	show ip ospf database
Show OSPF neighbors	show ip ospf neighbor	show ip ospf neighbor
Show OSPF interface	show ip ospf interface	show ip ospf interface
OSPF LSA filtering	area 1 filter-list prefix LIST-NAME in	area 0.0.0.1 filter-list prefix LIST-NAME in

Advanced BGP Configuration

Function	Cisco IOS/NX-OS	Arista EOS
BGP process	router bgp 65001	router bgp 65001
BGP router-id	bgp router-id 1.1.1.1	bgp router-id 1.1.1.1
eBGP neighbor	neighbor 10.1.1.2 remote-as 65002	neighbor 10.1.1.2 remote-as 65002
iBGP neighbor	neighbor 10.1.1.3 remote-as 65001	neighbor 10.1.1.3 remote-as 65001
BGP update source	neighbor 10.1.1.2 update-source loopback0	neighbor 10.1.1.2 update-source loopback0
BGP next-hop-self	neighbor 10.1.1.3 next-hop-self	neighbor 10.1.1.3 next-hop-self
Route reflector client	neighbor 10.1.1.3 route-reflector-client	neighbor 10.1.1.3 route-reflector-client
BGP peer-group	neighbor SPINE peer-group	neighbor SPINE peer-group
Maximum paths	maximum-paths 4	maximum-paths 4
BGP confederation	bgp confederation identifier 100	bgp confederation identifier 100
Route map inbound	neighbor 10.1.1.2 route-map MAP-IN in	neighbor 10.1.1.2 route-map MAP-IN in
Route map outbound	neighbor 10.1.1.2 route-map MAP-OUT out	neighbor 10.1.1.2 route-map MAP-OUT out
Prefix list	ip prefix-list ALLOW-DEFAULT permit 0.0.0.0/0	ip prefix-list ALLOW-DEFAULT permit 0.0.0.0/0
AS-path filter	ip as-path access-list 10 permit ^65001_	ip as-path access-list 10 permit ^65001_
BGP dampening	bgp dampening	bgp dampening
Show BGP summary	show ip bgp summary	show ip bgp summary
Show BGP neighbors	show ip bgp neighbors	show ip bgp neighbors
Show BGP table	show ip bgp	show ip bgp
BGP soft reset	clear ip bgp * soft	clear ip bgp * soft

EVPN Configuration

Function	Cisco NX-OS	Arista EOS
Enable EVPN	nv overlay evpn	service routing protocols model multi-agent
BGP EVPN address-family	address-family l2vpn evpn	address-family evpn
EVPN neighbor activate	neighbor 10.1.1.2 activate	neighbor 10.1.1.2 activate
EVPN route-target	route-target import 65001:100	route-target import 65001:100
EVPN RD	rd 10.1.1.1:100	rd 10.1.1.1:100
Show EVPN routes	show bgp l2vpn evpn	show bgp evpn
Show EVPN summary	show bgp l2vpn evpn summary	show bgp evpn summary
EVPN MAC mobility	dup-addr-detection max-moves 5	evpn mac mobility moves 5

VXLAN Configuration

Function	Cisco NX-OS	Arista EOS
Create VXLAN interface	interface nve1	interface vxlan1
VXLAN source interface	source-interface loopback1	vxlan source-interface loopback1
VLAN to VNI mapping	member vni 10100	vxlan vlan 100 vni 10100
Multicast group	mcast-group 239.1.1.100	vxlan vlan 100 flood vtep
VTEP discovery	host-reachability protocol bgp	vxlan flood vtep
L3 VNI	member vni 50001 associate-vrf	vxlan vrf TENANT vni 50001
Show VXLAN	show nve peers	show vxlan vtep
Show VXLAN tunnel	show interface nve1	show interfaces vxlan1
VXLAN MAC table	show l2route evpn mac-ip	show vxlan address-table

Advanced Troubleshooting Commands

Function	Cisco IOS/NX-OS	Arista EOS
CPU utilization history	show processes cpu history	show processes top once
Memory detailed	show memory detailed	show system memory detailed
Interface errors	show interfaces counters errors	show interfaces counters errors
Interface rates	show interfaces counters rates	show interfaces counters rates
Buffer usage	show buffers	show system buffers
Hardware info	show module	show version detail
Temperature monitoring	show environment temperature	show system temperature
Power supply status	show environment power	show system power
Fan status	show environment fans	show system fans
System resources	show system resources	show system resources
Process list	show processes	show processes
File system	dir	dir or bash df -h
System uptime	show version | include uptime	show uptime
Hardware platform	show platform	show platform
Transceiver info	show interface transceiver	show interfaces transceiver
Port channel load balance	show port-channel load-balance	show port-channel load-balance

Advanced Debugging & Packet Capture

Function	Cisco IOS/NX-OS	Arista EOS
Enable debug	debug ip packet	debug ip packet
Disable all debug	no debug all	no debug all
Show debug status	show debug	show debug
Packet capture	monitor capture CAP interface gi0/1	monitor capture CAP interface ethernet1
Start capture	monitor capture CAP start	monitor capture CAP start
Stop capture	monitor capture CAP stop	monitor capture CAP stop
Export capture	monitor capture CAP export tftp://1.1.1.1/cap.pcap	monitor capture CAP export tftp://1.1.1.1/cap.pcap
Mirror session	monitor session 1 source interface gi0/1	monitor session 1 source ethernet1
Mirror destination	monitor session 1 destination interface gi0/2	monitor session 1 destination ethernet2
Flow monitoring	ip flow monitor FLOW-MON	flow monitor FLOW-MON

Advanced Logging & Event Handling

Function	Cisco IOS/NX-OS	Arista EOS
Logging level	logging console 6	logging console 6
Remote logging	logging host 192.168.1.100	logging host 192.168.1.100
Logging source	logging source-interface loopback0	logging source-interface loopback0
Buffer size	logging buffered 16384	logging buffered 16384
Show logs filtered	show logging | include ERROR	show logging | grep ERROR
Event handler	N/A (Limited support)	event-handler HANDLER
Event trigger	N/A	trigger on-logging
Event action	N/A	action bash echo "Event occurred"
Show event handlers	N/A	show event-handler

Arista-Specific Advanced Features

Function	Command	Description
Zero Touch Provisioning	show zerotouch	Display ZTP status
Python shell	python-shell	Access Python interpreter
Bash shell	bash	Access Linux bash shell
Configuration sessions	configure session SESSION1	Create config session
Session commit	commit	Commit session changes
Session abort	abort	Abort session changes
Configuration rollback	configure replace terminal	Replace running config
MLAG configuration	mlag configuration	Enter MLAG config mode
MLAG domain ID	domain-id MLAG1	Set MLAG domain
MLAG peer-link	peer-link port-channel10	Configure peer-link
MLAG peer address	peer-address 192.168.1.2	Set peer IP
Show MLAG	show mlag	Display MLAG status
CloudVision	daemon cvp	Enable CloudVision
gNMI	management api gnmi	Enable gNMI
REST API	management api http-commands	Enable REST API
Docker support	docker	Access Docker commands
Advanced event monitor	event-monitor url	Monitor URL events
SFlow configuration	sflow sample 4096	Configure sFlow sampling
Configuration checkpoint	checkpoint save BACKUP1	Save configuration checkpoint
Restore checkpoint	checkpoint restore BACKUP1	Restore from checkpoint

Performance Monitoring & Analytics

Function	Cisco	Arista EOS
Interface statistics	show interface counters	show interfaces counters
Historical statistics	show interface counters detailed	show interfaces counters bins
Latency monitoring	show interface counters detailed	show interfaces counters latency
Queue statistics	show queueing interface	show interfaces counters queue
Traffic shaping	show traffic-shape statistics	show qos interface
SPAN statistics	show monitor session	show monitor session statistics
Flow statistics	show ip flow monitor	show flow monitor statistics

IS-IS Configuration

Function	Cisco IOS/NX-OS	Arista EOS
Enable IS-IS	router isis AREA1	router isis AREA1
NET address	net 49.0001.1921.6800.1001.00	net 49.0001.1921.6800.1001.00
IS-IS on interface	ip router isis AREA1	isis enable AREA1
IS-IS circuit type	isis circuit-type level-2-only	isis circuit-type level-2
IS-IS metric	isis metric 100	isis metric 100
IS-IS priority	isis priority 64	isis priority 64
IS-IS authentication	isis password cisco123	isis password cisco123
Area authentication	area-password cisco123	area-password cisco123
Domain password	domain-password cisco123	domain-password cisco123
IS-IS wide metrics	metric-style wide	metric-style wide
Show IS-IS database	show isis database	show isis database
Show IS-IS neighbors	show isis neighbors	show isis neighbors
Show IS-IS topology	show isis topology	show isis topology
Show IS-IS interface	show isis interface	show isis interface
Default route injection	default-information originate	default-information originate

MPLS Configuration

Function	Cisco IOS/NX-OS	Arista EOS
Enable MPLS	mpls ip (global)	mpls ip (global)
MPLS on interface	mpls ip (interface)	mpls ip (interface)
MPLS LDP	mpls ldp router-id loopback0	mpls ldp router-id loopback0
LDP on interface	mpls ldp discovery transport-address interface	mpls ldp interface
LDP neighbors	mpls ldp neighbor 10.1.1.2	mpls ldp neighbor 10.1.1.2
MPLS TE	mpls traffic-eng tunnels	mpls traffic-eng level-2
TE on interface	mpls traffic-eng tunnels (int)	mpls traffic-eng (int)
RSVP-TE	ip rsvp bandwidth	rsvp interface ethernet1
Show MPLS forwarding	show mpls forwarding-table	show mpls forwarding-table
Show LDP neighbors	show mpls ldp neighbor	show mpls ldp neighbor
Show MPLS interfaces	show mpls interfaces	show mpls interfaces
MPLS VPN (L3VPN)	vrf definition CUSTOMER-A	vrf instance CUSTOMER-A
Route distinguisher	rd 65001:100	rd 65001:100
Route target export	route-target export 65001:100	route-target export 65001:100
Route target import	route-target import 65001:100	route-target import 65001:100

Segment Routing (SR-MPLS)

Function	Cisco IOS-XR/NX-OS	Arista EOS
Enable segment routing	segment-routing mpls	router isis 1 → segment-routing mpls
SR global block	segment-routing mpls global-block 16000 23999	segment-routing mpls global-block 16000 23999
Node SID	segment-routing mpls sr-prefer	segment-routing mpls
Prefix SID	segment-routing prefix-sid absolute 16001	isis segment-routing prefix-sid absolute 16001
Adjacency SID	segment-routing mpls sr-prefer	isis segment-routing adjacency-sid
SR-TE policy	segment-routing traffic-eng policy POLICY1	router path-selection → policy POLICY1
Show SR MPLS	show segment-routing mpls mapping-server	show segment-routing
Show SR-TE tunnels	show segment-routing traffic-eng policy	show path-selection policy
PCE configuration	segment-routing traffic-eng pcc	path-selection pce
SR with BGP	segment-routing srv6 locator LOC1	Limited support

Datacenter Leaf-Spine Architecture

Function	Cisco NX-OS	Arista EOS
Leaf Configuration
BGP underlay	router bgp 65001	router bgp 65001
Spine neighbors	neighbor 10.0.1.1 remote-as 65100	neighbor 10.0.1.1 remote-as 65100
ECMP paths	maximum-paths 64	maximum-paths 128 ecmp 128
BGP timers	neighbor 10.0.1.1 timers 3 9	neighbor 10.0.1.1 timers 3 9
BFD for BGP	neighbor 10.0.1.1 fall-over bfd	neighbor 10.0.1.1 bfd
Spine Configuration
Multiple AS support	bgp router-id 10.0.0.1	bgp router-id 10.0.0.1
Leaf neighbors	neighbor LEAFS peer-group	neighbor LEAFS peer-group
EVPN Overlay
EVPN address family	address-family l2vpn evpn	address-family evpn
Route reflector	neighbor 10.1.1.1 route-reflector-client	neighbor 10.1.1.1 route-reflector-client
EVPN send-community	neighbor 10.1.1.1 send-community extended	neighbor 10.1.1.1 send-community extended

Multi-Tenancy & VRF

Function	Cisco NX-OS	Arista EOS
Create VRF	vrf context TENANT-A	vrf instance TENANT-A
VRF route distinguisher	rd auto	rd 10.1.1.1:1001
VRF address family	address-family ipv4 unicast	N/A (automatic)
Interface VRF assignment	vrf member TENANT-A	vrf TENANT-A
VRF routing table	show ip route vrf TENANT-A	show ip route vrf TENANT-A
BGP VRF	router bgp 65001 → vrf TENANT-A	router bgp 65001 → vrf TENANT-A
VRF leak	import from default-vrf route-map LEAK	import route-target 65001:999
L3 VNI assignment	l3 vni 50001	vxlan vrf TENANT-A vni 50001

Advanced MLAG Configuration (Arista-Specific)

Function	Arista EOS Command
MLAG configuration mode	mlag configuration
MLAG domain ID	domain-id MLAG-DOMAIN
Local interface	local-interface vlan4094
Peer address	peer-address 192.168.255.2
Peer link	peer-link port-channel1
Reload delay	reload-delay mlag 300
Reload delay non-MLAG	reload-delay non-mlag 330
MLAG interface	interface port-channel10 → mlag 10
Show MLAG status	show mlag
Show MLAG config	show mlag config-sanity
Show MLAG detail	show mlag detail
MLAG troubleshooting	show mlag interfaces

CloudVision & Automation (Arista-Specific)

Function	Arista EOS Command
Enable CloudVision	daemon cvp
CVP streaming	daemon cvp streaming
gNMI configuration	management api gnmi
gNMI transport	transport grpc default
REST API	management api http-commands
RESTCONF	management api restconf
Event handler	event-handler INTERFACE-DOWN
Event trigger	trigger on-intf oper-status
Event action	action bash FastCli -p 15 -c "show int et1"
Python script execution	schedule SCRIPT interval 60
Configuration session	configure session MY-SESSION
Commit confirm	commit confirm 300
Session diff	show session-config diffs

Advanced QoS & Traffic Engineering

Function	Cisco NX-OS	Arista EOS
Traffic Classes
QoS enable	feature qos	qos map dscp (built-in)
Class map	class-map type qos match-all VOICE	class-map VOICE
Policy map	policy-map type qos POLICY1	policy-map POLICY1
Traffic shaping	shape average 1000000	shape rate 1000 mbps
Traffic policing	police cir 500000000	police rate 500 mbps
WRED/ECN
WRED configuration	random-detect dscp-based	queue-monitor length notify 100
ECN marking	random-detect ecn	ecn trigger drop-probability
Buffer Management
Buffer pools	hardware qos buffer-space shared	qos map buffer-pool
Priority flow control	priority-flow-control on	priority-flow-control priority 3
Latency Optimization
Low latency queuing	priority level 1	priority strict
Queue scheduling	bandwidth percent 25	shape rate 25 percent

Security & AAA

Function	Cisco NX-OS	Arista EOS
AAA Configuration
AAA new model	aaa new-model	aaa authentication login default local
TACACS+ server	tacacs-server host 192.168.1.100	tacacs-server host 192.168.1.100
RADIUS server	radius-server host 192.168.1.101	radius-server host 192.168.1.101
Local users	username admin password 5 $1$hash	username admin secret 5 $1$hash
Authorization	aaa authorization exec default group tacacs+ local	aaa authorization exec default group tacacs+ local
Accounting	aaa accounting exec default start-stop group tacacs+	aaa accounting exec default start-stop group tacacs+
Access Control
Extended ACL	ip access-list extended WEB-FILTER	ip access-list WEB-FILTER
Time-based ACL	time-range BUSINESS-HOURS	time-range BUSINESS-HOURS
Object groups	object-group network WEB-SERVERS	object-group network WEB-SERVERS
Dynamic ACL	ip access-list extended DYNAMIC	ip access-list dynamic DYNAMIC
Control Plane Security
CoPP/Control plane	control-plane	system control-plane
Rate limiting	police cir 1000000	police rate 1000 kbps
Management plane	feature management	management ssh

Network Automation & APIs

Function	Cisco NX-OS	Arista EOS
NETCONF
NETCONF enable	feature netconf	management api netconf
NETCONF SSH	netconf ssh	transport ssh default
REST API
REST API enable	feature restconf	management api http-commands
HTTPS	restconf	protocol https
Model-Driven Telemetry
Telemetry enable	feature telemetry	daemon terminattr
Sensor groups	sensor-group 1	daemon terminattr streaming
Destination groups	destination-group 1	Built into TerminAttr
Python Integration
Python enable	feature python	python-shell (built-in)
Python scripts	python bootflash:script.py	schedule script.py interval 300
Zero Touch Provisioning
ZTP enable	feature ztp (limited)	zerotouch enable
ZTP status	show ztp status	show zerotouch
ZTP script	N/A (basic)	zerotouch config-url

Monitoring & Observability

Function	Cisco NX-OS	Arista EOS
sFlow/NetFlow
sFlow enable	feature sflow	sflow enable
sFlow collector	sflow collector 192.168.1.200	sflow destination 192.168.1.200
sFlow sampling	sflow sampling-rate 4000	sflow sample 4000
SPAN/RSPAN
SPAN session	monitor session 1	monitor session 1
SPAN source	source interface ethernet1/1 both	source ethernet1 both
SPAN destination	destination interface ethernet1/2	destination ethernet2
RSPAN VLAN	monitor session 1 type rspan-source	monitor session 1 type rspan
Streaming Telemetry
Streaming enable	telemetry	daemon terminattr
gNMI subscribe	N/A (limited)	Native gNMI support
Kafka streaming	Third-party required	Native with TerminAttr

High Availability & Redundancy

Function	Cisco NX-OS	Arista EOS
Graceful Restart
BGP graceful restart	graceful-restart	graceful-restart
OSPF graceful restart	graceful-restart	graceful-restart
NSF/SSO
Non-stop forwarding	nsf	Built-in with MLAG
Stateful switchover	redundancy	MLAG provides redundancy
BFD (Bidirectional Forwarding Detection)
BFD enable	feature bfd	bfd (enabled by default)
BFD for BGP	neighbor x.x.x.x fall-over bfd	neighbor x.x.x.x bfd
BFD for OSPF	ip ospf bfd	ip ospf bfd
BFD intervals	bfd interval 300 min_rx 300 multiplier 3	bfd interval 300 min-rx 300 multiplier 3

Platform-Specific Advanced Features Summary:

Cisco NX-OS Strengths:

• FEX (Fabric Extender) support for extended port density
• OTV (Overlay Transport Virtualization) for DCI
• LISP support for mobility and multi-homing
• Comprehensive MPLS feature set
• Advanced security with TrustSec, MACsec
• Traditional data center features like FCoE

Arista EOS Unique Advantages:

• Native Linux integration – full bash shell access
• Advanced event handling and automation
• Superior MLAG implementation vs traditional stacking
• CloudVision integration for centralized management
• Zero Touch Provisioning – industry-leading automation
• Native streaming telemetry with TerminAttr
• Configuration sessions with rollback capabilities
• Built-in Python scripting environment
• Modern API support (gNMI, REST, RESTCONF)
• Container support with Docker integration

Key Architectural Differences:

Cisco Approach:

• Feature-based licensing model
• Traditional hierarchical CLI structure
• Modular feature enablement (feature xyz)
• Complex VDC (Virtual Device Context) support
• Hardware-dependent features

Arista Approach:

• Software-driven with EOS consistency across platforms
• Linux-based foundation enables powerful scripting
• Event-driven automation built into the OS
• Cloud-native design principles
• Simplified licensing model

When to Choose Each Platform:

Choose Cisco NX-OS for:

• Legacy MPLS/service provider networks
• Fibre Channel/FCoE requirements
• Complex multi-tenancy with VDCs
• Integration with existing Cisco infrastructure
• Advanced security requirements (TrustSec)

Choose Arista EOS for:

• Modern cloud/web-scale data centers
• Automation-first environments
• Streaming telemetry and observability
• DevOps/NetOps integration
• Container/microservices architectures
• Simplified operations at scale