# Unchannelized T3 Modules

Table 17: Unchannelized T3 Modules

Protocol or Application | COCX-F3 Line Modules with CT3/T3 12 I/O Modules | OCx/STMx ATM Line Modules with 4xDS3 ATM I/O Modules
--- | --- | ---
Accepts traffic destined for GRE tunnels or DVMRP (IP-in-IP) tunnels | Yes | Yes
APS/MSP | No | No
ATM (point-to-point) | No | Yes
BERT | Yes | No
BFD | No | No
BGP | Yes | Yes
BGP/MPLS VPNs | Yes | Yes
Bridged Ethernet | No | Yes
Bridged IP | No | Yes
Cisco HDLC | Yes | No
DHCP external server | No | Yes
DHCP local server | No | Yes
DVMRP and GRE support—access side | No | No
DVMRP and GRE support—server side | Yes | Yes
Dynamic interfaces | No | Yes
F4 OAM and F5 OAM (ATM administration) | No | Yes
FDL (facilities data link) | No | No
Firewall | Yes | Yes
Frame Relay | Yes | No
ICMP unreachable messages for packets reaching null 0 interfaces with static routes | 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 | No | No
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 | Yes
LAC support—peer side | No | Yes
LNS support—peer side | No | Yes
Local loopback | Yes | No
MDL (maintenance data link) | Yes | No
Mobile IP home agent | No | No
MPLS | Yes (over PPP and Cisco HDLC; also supports Martini encapsulation of HDLC and Frame Relay over MPLS) | Yes
Multilink Frame Relay | Yes | No
Multilink PPP | Yes (with fragmentation and reassembly) | No
Network Address Translation (NAT) | Yes | Yes
NBMA (multipoint ATM) | No | Yes
OSPF | Yes | Yes
Packet Mirroring | Yes | Yes
Packet over SONET | No | No
PPP | Yes | Yes
PPPoE | No | Yes
Remote loopback | Yes | No
RIP | Yes | Yes
Subscriber interfaces (static) | Yes | Yes (over bridged Ethernet and IPoA)
Subscriber interfaces (dynamic) | Yes | Yes (over bridged Ethernet)
Transparent bridging | No | Yes
Tunnel-server ports | No | No
Unified ISSU | No | Yes
VPLS (network interfaces) | No | Yes
VPLS (virtual core interfaces) | Yes | Yes
VRRP | No | No