# OCx/STMx POS IOAs

Table 30: OCx/STMx POS IOA

Protocol or Application | ES2–S1 OC48 STM16 POS IOA | ES2–S1 OC12–2 STM4 POS IOA
--- | --- | ---
Accepts traffic destined for GRE tunnels or DVMRP (IP-in-IP) tunnels | Yes | Yes
APS/MSP | No | No
ATM | No | No
BERT | No | No
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 | Yes (for POS uplink interfaces; POS access interfaces not yet fully qualified) | Yes (for POS uplink interfaces; POS access interfaces not yet fully qualified)
DHCP local server | Yes (for POS access interfaces; not yet fully qualified) | Yes (for POS access interfaces; not yet fully qualified)
DVMRP and GRE support—access side | Yes | Yes
DVMRP and GRE support—server side | Yes | Yes (over shared tunnel server ports)
Dynamic interfaces | No | No
F4 OAM and F5 OAM (ATM administration) | No | No
FDL (facilities data link) | No | No
Firewall | No | No
Frame Relay | No | No
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 | Yes | Yes
IPSec | No | No
IPv6 | Yes | Yes
IPv6 multicast | Yes | Yes
IPv6 neighbor discovery | No | No
IS-IS | Yes | Yes
J-Flow Statistics | Yes | Yes
L2TP/IPSec | No | No
L2TP over MPLS | Yes | Yes
LAC support—access side | No | No
LAC support—peer side | Yes | Yes
LNS support—peer side | Yes | Yes
Local loopback | No | No
MDL (maintenance data link) | No | No
Mobile IP home agent | No | No
MPLS | Yes | Yes
Multiclass multilink PPP | No | No
Multilink Frame Relay | No | No
Multilink PPP | No | No
Network Address Translation (NAT) | No | No
NBMA (multipoint ATM) | No | No
OSPF | Yes | Yes
Packet Mirroring | No | No
Packet over SONET | Yes | Yes
PPP | Yes | Yes
PPPoE | No | No
Remote loopback | No | No
RIP | Yes | Yes
Subscriber interfaces (static) | Yes | Yes
Subscriber interfaces (dynamic) | No | No
Transparent bridging | No | No
Tunnel-server ports | Yes (shared only) | Yes (shared only)
Unified ISSU | Yes | Yes
VPLS (network interfaces) | No | No
VPLS (virtual core interfaces) | Yes | Yes
VRRP | No | No