FeaturesoftheCatalyst3550EthernetSwitch

a. Layer 3 / IP Unicast Routing
i. RIP
ii. IGRP / EIGRP
iii. OSPF
iv. BGP
v. HSRP
vi. Distance Vector Multicast Routing Protocol (DVMRP) tunneling
vii. Multicast Routing
1. PIM
2. IGMP
3. MVR Multicast VLAN Registration Protocol
b. Security
i. Gaining Access
1. Multilevel security on console access (prevents unauth users
from altering switch config)
2. Securing Telnet Access to the Switch
ii. SSH
iii. 802.1x Authentication
iv. RADIUS / TACACS+
v. Router ACL’s
vi. VLAN-Maps
vii. When to Use Access-Lists and VLAN-Maps
viii. Port-Based Security
1. Port-Based ACLs (PACLs)
2. Port-Based Traffic Control
a. Storm Control
b. Proteced Ports (Similar to Private VLAN)
c. Port Blocking
d. Port Security
c. Quality of Service (QoS)
i. Advanced QoS
ii. Automatic QoS (Auto QoS)
iii. Rate-limiting
iv. Using Class-Maps
v. Policy Maps
vi. Classify, Police, and Mark Using Policy Maps.
vii. Classify, Police, and Mark Traffic Using Aggregate Policers
d. Layer 2 VLANS / Spanning Tree Protocol (STP): IEEE 802.1D
2
i. VTP
ii. Voice VLAN
iii. Standard-Range VLAN Configuration
iv. Configuring Extended VLANs
v. Spanning-tree root guard (STRG)
vi. Loopguard
vii. Uplinkfast
viii. Backbone Fast Configuration
ix. Portfast
x. CrossStack UplinkFast (CSUF)
xi. Per VLAN Spanning Tree Plus (PVST+)
xii. ISL
xiii. 802.1q
xiv. RSTP - IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
xv. MST ? IEEE 802.1s Multiple Spanning Tree
xvi. Fallback Bridging
xvii. UniDirectional Link Detection (UDLD) and Aggressive UDLD
e. EtherChannel
f. Misc
i. Switch Optimization
ii. WCCP
iii. SNMP
iv. SPAN and RSPAN
v. Multi-VRF CE (Virtual Routing Forwarding Customer Edge, also called
VRF-lite)
vi. DHCP Option 82 Subscriber Identification
vii. Service Provider-Oriented Functions
1. Layer 2 Protocol Tunneling
viii. Clustering
g. Links
3. Appendix A ? Command Reference3550 SSH
Switch(config)# crypto key generate rsa 启用SSH
Switch(config)# username bob passWord dsb
Switch(config)# line vty 0 4
Switch(config)# login local
authentication
Switch(config)# transport input ssh 只使用SSH