nable command, 78, 298, 299 show vtp password command, 58 spanning-tree port type edge command, 96 show vtp status command, 56 spanning-tree port type edge trunk command, show xlate command, 509 96,301,306 sidereal day, 690 spanning-tree portfast command silence suppression, 563 ASA firewall example, 493 Simple NTP (SNTP), 693 bridge assurance example, 103 SIP (Session Initiation Protocol) enabling PortFast feature, 95 functionality, 525 macro example, 321 NAT considerations, 561-567 network design considerations, 642 small office VoIP example, 555-567 speed troubleshooting, 570 configuring setting, 23 sip-ua command, 558 defined, 19 Skinny Call Control Protocol (SCCP), 526 framing errors and, 360 slash notation, 278 speed mismatch scenario, 602-606 smart jacks, 352 speed command, 23 smartport macros, 320-324 speed default command, 518 SMTP commands, 477 split horizon technique, 128 sneaker net, 1 SRST (Survivable Remote Site Telephony), 249, SNMP, failover and, 493 SNTP (Simple NTP), 693 SSH (Secure Shell), 167 soft phones, defined, 528 ssh command, 506 SONET (synchronous optical network), 352, SSH packets, 575 SSID (Service Set ID), 516 Index stacking GBICs, 317 MSFC and, 238 stacking switches, 14, 317-319 speed and, 15 standards (see standards beginning with IEEE) Supervisor-720-10G VSS model, 240 standby ASA, 492 supervisors standby preempt command, 183 defined, 238 standby priority command, 183 models supported, 239 standby track command, 186 modules and, 236 stateful failover, 492, 497 MSFC support, 238 Stateless Address Autoconfiguration protocol, policy feature cards and, 238 speed and, 15 static command, 502, 505 Survivable Remote Site Telephony (SRST), 249, static secure MAC addresses, 329 sticky secure MAC addresses, 329 SVC (switched virtual circuit), 387 storm control, 325-329 SVIs (switched virtual interfaces) storm-control action command, 327 configuring, 223-228 storm-control command, 326 creating, 224 STP (Spanning Tree Protocol), 81, 294 defined, 221 subinterfaces, 391, 401 FWSMs and, 245 subnet