Knowledge

Port mirroring

Source 📝

25: 212: 158:
data or diagnose errors on a network. It helps administrators keep a close eye on network performance and alerts them when problems occur. It can be used to mirror either inbound or outbound traffic (or both) on single or multiple
120: 54: 253: 115:
connection on another switch port. This is commonly used for network appliances that require monitoring of network traffic such as an
185: 272: 128: 76: 47: 246: 277: 100: 160: 239: 116: 104: 37: 190: 172: 41: 33: 58: 196: 124: 8: 227: 112: 219: 97: 223: 93: 266: 132: 211: 186:
Cisco Systems - Catalyst Switched Port Analyzer (SPAN) Configuration Example
154:
Network engineers or administrators use port mirroring to analyze and
155: 143:(RSPAN). Other vendors have different names for it, such as 148: 108: 264: 46:but its sources remain unclear because it lacks 247: 16:Network switch feature for monitoring traffic 254: 240: 127:(RUM) technology that is used to support 77:Learn how and when to remove this message 265: 191:Port mirroring (roving analysis port) 206: 18: 135:switch is generally referred to as 13: 129:application performance management 14: 289: 179: 210: 23: 1: 141:Remote Switched Port Analyzer 226:. You can help Knowledge by 7: 166: 131:(APM). Port mirroring on a 10: 294: 205: 117:intrusion detection system 273:Computer network analysis 173:VLAN access control list 32:This article includes a 61:more precise citations. 278:Computer network stubs 137:Switched Port Analyzer 145:Roving Analysis Port 125:real user monitoring 220:computer networking 103:seen on one switch 193:- TechTarget, 2014 113:network monitoring 96:to send a copy of 34:list of references 235: 234: 87: 86: 79: 285: 256: 249: 242: 214: 207: 82: 75: 71: 68: 62: 57:this article by 48:inline citations 27: 26: 19: 293: 292: 288: 287: 286: 284: 283: 282: 263: 262: 261: 260: 203: 182: 169: 90:Port mirroring 83: 72: 66: 63: 52: 38:related reading 28: 24: 17: 12: 11: 5: 291: 281: 280: 275: 259: 258: 251: 244: 236: 233: 232: 215: 201: 200: 197:Port Mirroring 194: 188: 181: 180:External links 178: 177: 176: 168: 165: 107:(or an entire 94:network switch 85: 84: 42:external links 31: 29: 22: 15: 9: 6: 4: 3: 2: 290: 279: 276: 274: 271: 270: 268: 257: 252: 250: 245: 243: 238: 237: 231: 229: 225: 222:article is a 221: 216: 213: 209: 208: 204: 199:- Technopedia 198: 195: 192: 189: 187: 184: 183: 174: 171: 170: 164: 162: 157: 152: 150: 146: 142: 138: 134: 133:Cisco Systems 130: 126: 122: 121:passive probe 118: 114: 110: 106: 102: 99: 95: 92:is used on a 91: 81: 78: 70: 60: 56: 50: 49: 43: 39: 35: 30: 21: 20: 228:expanding it 217: 202: 153: 144: 140: 136: 89: 88: 73: 64: 53:Please help 45: 59:introducing 267:Categories 161:interfaces 151:switches. 139:(SPAN) or 67:April 2014 147:(RAP) on 167:See also 111:) to a 101:packets 98:network 55:improve 175:(VACL) 218:This 156:debug 40:, or 224:stub 149:3Com 109:VLAN 105:port 123:or 269:: 163:. 119:, 44:, 36:, 255:e 248:t 241:v 230:. 80:) 74:( 69:) 65:( 51:.

Index

list of references
related reading
external links
inline citations
improve
introducing
Learn how and when to remove this message
network switch
network
packets
port
VLAN
network monitoring
intrusion detection system
passive probe
real user monitoring
application performance management
Cisco Systems
3Com
debug
interfaces
VLAN access control list
Cisco Systems - Catalyst Switched Port Analyzer (SPAN) Configuration Example
Port mirroring (roving analysis port)
Port Mirroring
Stub icon
computer networking
stub
expanding it
v

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.