{"id":670,"date":"2021-02-18T08:52:35","date_gmt":"2021-02-18T14:52:35","guid":{"rendered":"http:\/\/jmcristobal.com.mx\/?p=670"},"modified":"2022-02-11T22:35:10","modified_gmt":"2022-02-12T06:35:10","slug":"etherchannel-overview","status":"publish","type":"post","link":"http:\/\/ec2-52-7-70-250.compute-1.amazonaws.com\/es\/2021\/02\/18\/etherchannel-overview\/","title":{"rendered":"Etherchannel Overview"},"content":{"rendered":"<p>Etherchannel tambi\u00e9n conocido como Link Aggregation es una tecnolog\u00eda que permite agrupar varias interfaces f\u00edsicas que conectan un par de dispositivos, cuando el etherchannel es establecido los dispositivos lo ven como una sola interfaz l\u00f3gica incrementando el ancho de banda considerablemente.<\/p>\n<p>Se pueden agrupar hasta ocho interfaces f\u00edsicas en una sola interfaz l\u00f3gica, el nombre de esta nueva interfaz l\u00f3gica es llamada Port-Channel. Los puertos etherchannel pueden ser configurado en capa 2 o capa 3.<\/p>\n<p>EtherChannel proporciona enlaces de alta velocidad tolerantes a fallas entre switches, routers, firewall y servidores. Si un enlace falla, EtherChannel redirige el tr\u00e1fico desde el enlace fallido a los enlaces restantes del port-channel sin intervenci\u00f3n administrativa y es transparente para el usuario final.<\/p>\n<p>Los protocolos de control plane toman en cuenta la interfaz l\u00f3gica port-channel y no las interfaces individuales que los conforman, por ejemplo Spanning-Tree.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-672\" src=\"http:\/\/jmcristobal.com\/wp-content\/uploads\/2021\/02\/Etherchannel_1.jpg\" alt=\"Etherchannel_1\" width=\"634\" height=\"353\" srcset=\"https:\/\/ec2-52-7-70-250.compute-1.amazonaws.com\/wp-content\/uploads\/2021\/02\/Etherchannel_1.jpg 772w, https:\/\/ec2-52-7-70-250.compute-1.amazonaws.com\/wp-content\/uploads\/2021\/02\/Etherchannel_1-300x167.jpg 300w, https:\/\/ec2-52-7-70-250.compute-1.amazonaws.com\/wp-content\/uploads\/2021\/02\/Etherchannel_1-768x428.jpg 768w\" sizes=\"(max-width: 634px) 100vw, 634px\" \/><\/p>\n<p>Para que etherchannel funcione ambos dispositivos deben de comprender y utilizar la tecnolog\u00eda para que funcione correctamente.<\/p>\n<p>Generalmente, todos los puertos agrupados primero deben pertenecer a la misma VLAN. Si se usa como troncal, los puertos agrupados deben estar en modo trunking, tener la misma VLAN nativa y pasar el mismo conjunto de VLANs. Cada uno de los puertos debe tener la misma velocidad y configuraci\u00f3n d\u00faplex antes de agruparse. Los puertos incluidos tambi\u00e9n deben tener  configuraciones id\u00e9nticas de spanning-tree.<\/p>\n<p>Los port-channel que vayan a ser utilizados en capa 3 deben de estar configurados con el comando no switchport.<\/p>\n<h4>Port-channel load balancing<\/h4>\n<p>La distribuci\u00f3n de los frames entre las interfaces f\u00edsicas que conforman el port-channel est\u00e1 basado en una funci\u00f3n hashing. Este hash depende del m\u00e9todo utilizado para el balanceo. Con el resultado obtenido del hash, se identifica cual puerto f\u00edsico utilizar\u00e1 para enviar el frame.<\/p>\n<p>La operaci\u00f3n de hashing se puede realizar en direcciones MAC o IP y puede basarse \u00fanicamente en las direcciones de origen, destino o en ambas (tambi\u00e9n existen m\u00e9todos que utilizan el n\u00famero de puerto). Los m\u00e9todos de load-balancing por defecto dependen del modelo y versi\u00f3n de software del switch, pueden ser de capa 2, 3 o 4 y aplican de forma global para todo los port-channel. Veamos algunos de los m\u00e9todos de balanceo etherchannel disponibles:<\/p>\n<ul>\n<li>src-ip : Direcci\u00f3n IP origen<\/li>\n<li>dst-ip : Direcci\u00f3n IP destino<\/li>\n<li>src-dst-ip : Direcci\u00f3n IP origen y destino<\/li>\n<li>src-mac : Direcci\u00f3n MAC origen<\/li>\n<li>dst-mac : Direcci\u00f3n MAC destino<\/li>\n<li>src-dst-mac : Direcci\u00f3n MAC origen y destino<\/li>\n<li>src-port : N\u00famero de puerto origen<\/li>\n<li>dst-port : N\u00famero de puerto destino<\/li>\n<li>src-dst-port :N\u00famero de puerto origen  destino<\/li>\n<\/ul>\n<p>La configuraci\u00f3n del m\u00e9todo de balanceo es con el siguiente comando:<\/p>\n<pre class=\"height-set:true height:900 width-set:true width:750 top-set:false top-margin:25 bottom-set:false left-margin:25 toolbar:2 whitespace-before:1 whitespace-after:1 lang:sh decode:true\">Switch# port-channel load-balance &lt;method&gt;\n\n! Example: Each platform provides some extra methods\n\nSwitch# port-channel load-balance ?\n\u00a0 dst-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dst IP Addr\n\u00a0 dst-mac\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dst Mac Addr\n\u00a0 dst-mixed-ip-port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dst IP Addr and TCP\/UDP Port\n\u00a0 dst-port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dst TCP\/UDP Port\n\u00a0 mpls\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Load Balancing for MPLS packets\n\u00a0 src-dst-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src XOR Dst IP Addr\n\u00a0 src-dst-mac\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src XOR Dst Mac Addr\n\u00a0 src-dst-mixed-ip-port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src XOR Dst IP Addr and TCP\/UDP Port\n\u00a0 src-dst-port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src XOR Dst TCP\/UDP Port\n\u00a0 src-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src IP Addr\n\u00a0 src-mac\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src Mac Addr\n\u00a0 src-mixed-ip-port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src IP Addr and TCP\/UDP Port\n\u00a0 src-port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Src TCP\/UDP Port\n\u00a0 vlan-dst-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Vlan, Dst IP Addr\n\u00a0 vlan-dst-mixed-ip-port\u00a0\u00a0\u00a0\u00a0\u00a0 Vlan, Dst IP Addr and TCP\/UDP Port\n\u00a0 vlan-src-dst-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Vlan, Src XOR Dst IP Addr\n\u00a0 vlan-src-dst-mixed-ip-port\u00a0 Vlan, Src XOR Dst IP Addr and TCP\/UDP Port\n\u00a0 vlan-src-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Vlan, Src IP Addr\n\u00a0 vlan-src-mixed-ip-port\u00a0\u00a0\u00a0\u00a0\u00a0 Vlan, Src IP Addr and TCP\/UDP Port\n\nSwitch(config)#<\/pre>\n<p>Comando para ver el m\u00e9todo de balanceo que tiene un switch:<\/p>\n<pre class=\"height-set:true height:900 width-set:true width:750 top-set:false top-margin:25 bottom-set:false left-margin:25 toolbar:2 whitespace-before:1 whitespace-after:1 lang:sh decode:true\">Switch# show etherchannel load-balance \nEtherChannel Load-Balancing Configuration:\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 src-dst-ip\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\nEtherChannel Load-Balancing Addresses Used Per-Protocol:\nNon-IP: Source XOR Destination MAC address\n\u00a0 IPv4: Source XOR Destination IP address\n\u00a0 IPv6: Source XOR Destination IP address\n\nSwitch#<\/pre>\n<p>Para verificar la eficacia con la que se est\u00e1 ejecutando un m\u00e9todo de balanceo de carga configurado, puede usar el comando show etherchannel port-channel. Se muestra cada enlace en el canal, junto con un valor hexadecimal \"Load\". Aunque esta informaci\u00f3n no es intuitiva, puede usar los valores hexadecimales para tener una idea de las cargas de tr\u00e1fico de cada enlace en relaci\u00f3n con las dem\u00e1s.<\/p>\n<pre class=\"height-set:true height:900 width-set:true width:750 top-set:false top-margin:25 bottom-set:false left-margin:25 toolbar:2 whitespace-before:1 whitespace-after:1 lang:sh decode:true\">Switch# show etherchannel port-channel\u00a0\u00a0\u00a0 \u00a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Channel-group listing: \n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -----------------------\n\nGroup: 10 \n----------\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Port-channels in the group: \n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ----------------------\n\nPort-channel: Po10\u00a0\u00a0\u00a0 (Primary Aggregator)\n\n------------\n\nAge of the Port-channel\u00a0\u00a0 = 1344d:00h:15m:03s\nLogical slot\/port\u00a0\u00a0 = 14\/2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Number of ports = 2\nHotStandBy port = null \nPort state\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = Port-channel Ag-Inuse \nProtocol\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0 LACP\nPort security\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = Disabled\nFast-switchover\u00a0\u00a0\u00a0\u00a0 = disabled\nFast-switchover Dampening = disabled\nLoad share deferral = disabled\u00a0 \u00a0\nIs fex host PO\u00a0\u00a0\u00a0 = FALSE\n\nPorts in the Port-channel: \n\nIndex\u00a0\u00a0 Load\u00a0\u00a0\u00a0\u00a0\u00a0 Port\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 EC state\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 No of bits\n------+------+------------+------------------+-----------\n\u00a00\u00a0\u00a0\u00a0\u00a0\u00a0 8E\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Te5\/1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Active\u00a0\u00a0 4\n\u00a01\u00a0\u00a0\u00a0\u00a0\u00a0 71\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Te5\/2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Active\u00a0\u00a0 4\n\nTime since last port bundled:\u00a0\u00a0\u00a0 287d:08h:41m:08s\u00a0\u00a0\u00a0 Te5\/2\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\nTime since last port Un-bundled: 287d:10h:48m:10s\u00a0\u00a0\u00a0 Te5\/2<\/pre>\n<p>Cuando un port-channel se va la estado errdisable es necesario apagar y encender la interfaz port-channel, asi como las interfaces f\u00edsicas individuales.<\/p>\n<p>En la siguiente publicaci\u00f3n hablaremos sobre los protocolos existentes para establecer los enlaces etherchannel.<\/p>\n<p>Mas informaci\u00f3n:<\/p>\n<p><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/lan\/catalyst3750x_3560x\/software\/release\/15-2_4_e\/configurationguide\/b_1524e_consolidated_3750x_3560x_cg\/b_1524e_consolidated_3750x_3560x_cg_chapter_01000010.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/switches\/lan\/catalyst3750x_3560x\/software\/release\/15-2_4_e\/configurationguide\/b_1524e_consolidated_3750x_3560x_cg\/b_1524e_consolidated_3750x_3560x_cg_chapter_01000010.html<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Etherchannel, also known as Link Aggregation, is a technology that allows grouping several physical interfaces that connect a pair of devices; when <\/p>","protected":false},"author":2,"featured_media":1392,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[233],"tags":[280,485,488,487,427],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.13 - 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