DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide 
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Protocol Name  Sub-interface 
(Group) 
Description 
802.1X 
Protocol  Port-based Network Access Control 
ARP 
Protocol  Address resolution Protocol 
BGP 
Protocol  Border Gateway Protocol 
DHCP 
Protocol  Dynamic Host Configuration Protocol 
DNS 
Protocol  Domain Name System 
DVMRP 
Protocol  Distance Vector Multicast Routing Protocol 
GVRP 
Protocol  GARP VLAN Registration Protocol 
ICMPv4 
Protocol  Internet Control Message Protocol 
ICMPv6-
Neighbor 
Protocol  IPv6 Internet Control Message Protocol Neighbor Discovery Protocol 
(NS/NA/RS/RA) 
ICMPv6-Other 
Protocol  IPv6 Internet Control Message Protocol except Neighbor Discovery 
Protocol (NS/NA/RS/RA) 
IGMP 
Protocol  Internet Group Management Protocol 
LACP 
Protocol  Link Aggregation Control Protocol 
NTP 
Protocol  Network Time Protocol 
OSPF 
Protocol  Open Shortest Path First 
PIM 
Protocol  Protocol Independent Multicast 
PPPoE 
Protocol  Point-to-point protocol over Ethernet 
RIP 
Protocol  Routing Information Protocol 
SNMP 
Manage  Simple Network Management Protocol 
SSH 
Manage  Secure Shell 
STP 
Protocol  Spanning Tree Protocol 
Telnet 
Manage  Telnet 
TFTP 
Manage  Trivial File Transfer Protocol 
VRRP 
Protocol  Virtual Router Redundancy Protocol 
Web 
Manage  Hypertext Transfer Protocol (HTTP) and Hypertext Transfer Protocol 
Secure (HTTPS) 
 
A customized rate limit (in packets per second) can be assigned to the Safeguard Engine’s sub-interfaces as a whole 
or to individual protocols specified by the user in the management interface. Be careful when customizing the rate limit 
for individual protocols, using this function, as improper rate limits can cause the Switch to process packets 
abnormally. 
 
 
NOTE: When Safeguard Engine is enabled, the Switch will allot bandwidth to various traffic flows (ARP, 
IP) using the FFP (Fast Filter Processor) metering table to control the CPU utilization and limit 
traffic. This may limit the speed of routing traffic over the network. 
 
Safeguard Engine Settings 
This window is used to display and configure the safeguard engine settings. 
To view the following window, click Security > Safeguard Engine > Safeguard Engine Settings, as shown below: