Chapter 16: Dynamic Routing Protocols
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
469
Table 65.
Number of IPv4 and IPv6 Routes Supported by the C4/c CMTS
Protocol Type
Total
Prefix Delegation and Route Injection (PDRI)
Dynamic
Static
IPv4
32,000
n/a
n/a
n/a
IPv6
a
28,000
b
16,000
10,000
c
2,000
a. The IPv6 routes are in addition to the IPv4 total.
b. The total of IPv6 routes allowed is the sum total of the PDRI, Dynamic, and Static routes.
c. The total number of IPv6 dynamic routes is a combination of MP-BGP, OSPFv3 or IS-IS IPv6 routes.
Note: IS-IS runs only on the default VRF.
CLNP Addressing/NSAP Address Format
CLNP is an abbreviation of Connectionless Network Protocol. NSAP stands for Network Service Access Point. The CLNP
node-based addressing scheme is one of the concepts retained for use in advertising IP networks. CLNP network
addressing is mandatory on IP routers and therefore both CLNP and IP addresses need to be provisioned on the C4/c
CMTS.
CLNP Address
The CLNP address is analogous to an IP loopback interface in so far as it is node-based versus interface-based. As such, a
single CLNP address suffices per IS-IS node, within a specific IS-IS area.
NSAP Address
Each CLNP (NSAP) address is composed of three parts:
An area identifier (area ID) prefix
A system identifier (SysID)
An N-selector
A group of routers within a specific area shares the same area ID.