# Channelized OCx/STMx Modules

Table 11: Channelized OCx/STMx Modules

Protocol or Application | cOCx FO Line Module with cOC3/STM1 Modules | cOCx FO Line Module with cOC12/STM4 FO I/O Modules
--- | --- | ---
Accepts traffic destined for GRE tunnels or DVMRP (IP-in-IP) tunnels | Yes | Yes
APS/MSP | No | Yes (single-mode intermediate reach only)
ATM (point-to-point) | No | No
BERT | Yes | Yes
BFD | No | No
BGP | Yes | Yes
BGP/MPLS VPNs | Yes | Yes
Bridged Ethernet | No | No
Bridged IP | No | No
Cisco HDLC | Yes | Yes
DHCP external server | No | No
DHCP local server | No | No
Dynamic interfaces | No | No
DVMRP and GRE support—access side | Yes | No
DVMRP and GRE support—server side | Yes | No
F4 OAM and F5 OAM (ATM administration) | No | No
FDL (facilities data link) | Yes | Yes
Firewall | Yes | Yes
Frame Relay | Yes | Yes
ICR | No | No
IEEE 802.3ad link aggregation | No | No
IEEE 802.3ah OAM link-fault management | No | No
IP | Yes | Yes
IP multicast | Yes | Yes
IP reassembly for tunneled packets | No | No
IPSec | No | No
IPv6 | No | No
IPv6 multicast | No | No
IPv6 neighbor discovery | No | No
IS-IS | Yes | Yes
J-Flow Statistics | Yes | Yes
L2TP/IPSec | No | No
LAC support—access side | No | No
LAC support—peer side | No | No
LNS support—peer side | No | No
Local loopback | Yes | Yes
MDL (maintenance data link) | Yes | Yes
Mobile IP home agent | No | No
MPLS | Yes | Yes
Multilink Frame Relay | Yes | Yes
Multilink PPP | Yes (with fragmentation and reassembly) | Yes (with fragmentation and reassembly)
Network Address Translation (NAT) | Yes | Yes
NBMA (multipoint ATM) | No | No
OSPF | Yes | Yes
Packet Mirroring | Yes | Yes
Packet over SONET | No | No
PPP | Yes | Yes
PPPoE | No | No
Remote loopback | Yes | Yes (T3 layer)
RIP | Yes | Yes
Subscriber interfaces (static) | Yes | Yes
Subscriber interfaces (dynamic) | Yes | Yes
Transparent bridging | No | No
Tunnel-server ports | No | No
Unified ISSU | No | No
VPLS (network interfaces) | No | No
VPLS (virtual core interfaces) | Yes | Yes
VRRP | No | No