Cisco Nexus 9000 Series Configuration Manual page 12

About ITD
Hardware based multi-terabit/s L3/L4 load-balancing at wire-speed
1.
2. Zero latency load-balancing
Redirect line-rate traffic to any devices, for example web cache engines, Web Accelerator Engines
3.
(WAE), video-caches, etc
Capability to create clusters of devices, for example, Firewalls, Intrusion Prevention System (IPS), or
4.
Web Application Firewall (WAF), Hadoop cluster
IP-stickiness
5.
6. Resilient (like resilient ECMP), Consistent hash
Virtual IP based L4 load-balancing
7.
8. Weighted load-balancing and Failaction are supported among nodes
Load-balances to large number of devices/servers
9.
10. ACL along with redirection and load balancing simultaneously
Bi-directional flow-coherency. Traffic from A–>B and B–>A goes to same node
11.
12. The servers/appliances don't have to be directly connected to Nexus switch
13. Monitoring the health of servers/appliances with IP SLA-based probes
14. N + M redundancy (N number of nodes and M number of hot-standbys)
15. Automatic failure handling of servers/appliances
16. VRF support, vPC support
17. Supports both IPv4 and IPv6 (all platforms do not support IPv6)
18. The feature does not add any load to the supervisor CPU
19. Handles unlimited number of flows
Nondisruptive node addition or deletion
20.
21. Simultaneous redirection and load balancing
Rate sharing across multiple ITD services in the same switch
22.
Use case examples:
• Load-balance to cluster of Firewalls.
• Scale IPS, IDS and WAF by load-balancing to standalone devices
• Scale the NFV solution by load-balancing to low cost VM/container based NFV
• Scale the WAAS / WAE solution. Traffic redirection mechanism for the Wide Area Application Services
(WAAS) or Web Accelerator Engine (WAE) solution
• Scale the VDS-TC (video-caching) solution
• Scale Layer-7 load-balancers, by distributing traffic to L7 LBs
Cisco Nexus 9000 Series NX-OS Intelligent Traffic Director Configuration Guide, Release 9.x
4
Configuring ITD