Nell-IX
Technical

Technical specifications

A redundant Layer 2 fabric on Arista 7280R3 switches, built for low latency and no single point of failure.

Switching platform

  • Arista 7280R3 series switches
  • 100G-capable ports
  • Sub-microsecond switching latency
  • Redundant power supplies

Design

  • Layer 2 switching fabric
  • No single point of failure
  • Active monitoring and alerting
  • Automated failover
Supported ports
SpeedOptic
1 Gbps1000BASE-LX/LR
10 Gbps10GBASE-LR/ER
25 Gbps25GBASE-LR
40 Gbps40GBASE-LR4
100 Gbps100GBASE-LR4
Protocols

IPv4 & IPv6

Dual-stack on every port.

Jumbo frames

MTU up to 9000 bytes.

802.1Q

VLAN tagging supported.

Security

Layer 2

  • MAC address filtering per port
  • Storm control for broadcast, multicast and unknown unicast
  • ARP and ND snooping
  • DHCP snooping
  • Port security enforcement

Routing

  • RPKI validation on route servers
  • IRR-based prefix filtering
  • Maximum prefix limits
  • Bogon and martian filtering
  • AS path validation
Monitoring & statistics

SNMP

Read-only SNMP for members to monitor their own ports.

sFlow

sFlow sampling for traffic analysis and DDoS detection.

Traffic graphs

Live and historical graphs in the member portal.

BGP best practices
! Example BGP configuration
router bgp YOUR-ASN
 neighbor ROUTE-SERVER-IPv4 remote-as 11859
 neighbor ROUTE-SERVER-IPv4 description Nell-IX Route Server
 neighbor ROUTE-SERVER-IPv4 maximum-prefix 100000
 neighbor ROUTE-SERVER-IPv4 prefix-list YOUR-PREFIXES out
 !
 neighbor ROUTE-SERVER-IPv6 remote-as 11859
 neighbor ROUTE-SERVER-IPv6 description Nell-IX Route Server IPv6
 neighbor ROUTE-SERVER-IPv6 maximum-prefix 20000

Before you go live

  • Filter outbound: announce only your own prefixes
  • Set sensible maximum-prefix limits
  • Keep IRR records (RADB, RIPE and others) current
  • Publish ROAs so RPKI validates your routes
  • Use communities for selective peering

Technical questions?

The NOC is available 24/7.

Email the NOC Peering policy