Коммутатор Cisco Catalyst WS-C4948E-S
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Блок питания PWR-C49E-300AC-R - 1 шт
Коммутаторы Cisco Catalyst 4948E Ethernet Switches из серии Cisco Catalyst 4900 предназначены для центров обработки данных. Изначально построены для обеспечения наилучшей функциональности в своем классе. Коммутаторы Cisco Catalyst 4948E предлагают front-to-back охлаждение и предназначены для упрощения архитектуры датацентра и операций, предлагая аппаратное и программное обеспечение уровня сервис-провайдеров для инсталяции в один юнит стойки.
- Присутствует возможность горячей замены блоков питания, а также вентиляторов
- Производительность при передаче данных достигает 176 Гбит/с и 131 миллионов пакетов в секунду
- Поддержка интерфейсов SFP и SFP+ для внедрения и перехода к скоростям 10 Гбит/с
- Увеличенный размер буфера и алгоритмы оптимизации позволяют без потерь передать весь трафик в период перегрузок
- Расширенные возможности качества в обслуживании позволяют настроить до 8 типов очередей на порт
| Feature | Cisco Catalyst 4948 Switch | Cisco Catalyst 4948 10 Gigabit Ethernet Switch | Cisco Catalyst 4948E Ethernet Switch |
| Performance | |||
| Switching capacity | 96 Gbps | 136 Gbps | 176 Gbps |
| Throughput | 72 million packets per second (mpps) | 102 mpps | 131-mpps IPv4 switching 110-mpps IPv6 switching |
| IPv6 Support | Software | Software | Hardware |
| Height | 1RU | 1RU | 1RU |
| 10/100/1000 Gbps ports | 48 (last 4 are combination ports) | 48 | 48 |
| 10 Gigabit Ethernet fiber ports | 0 | 2 X2 based | 4 SFP+ |
| Gigabit Ethernet fiber ports | 4x SFP (combo ports) | 0 | 4 SFP |
| Multilayer switching | LAN Base, IP Base and Enterprise Services | LAN Base, IP Base and Enterprise Services | LAN Base, IP Base and Enterprise Services |
| Shared packet buffer | 16 MB | 16 MB | 17.5 MB |
| Latency | 5.9 microseconds | 4.4 microseconds | 4 microseconds |
| CPU | 266 MHz | 666 MHz | 1.0 GHz |
| Synchronous Dynamic RAM (SDRAM) | 256 MB | 256 MB | 1024 MB |
| Active VLANs | 4096 | 4096 | 4096 |
| Multicast entries | • 28,000 (Layer 3) • 16,000 (Layer 2) | • 28,000 (Layer 3) • 16,000 (Layer 2) | • 32,000 (IPv4 Layer 3) • 16,000 (IPv6 Layer 3) • 32,000 (Layer 2) |
| Per-VLAN Spanning Tree (PVST) and VLAN IDs | 4,096 | 4,096 | 4096 |
| Spanning Tree Protocol instances | 1500 | 1500 | 3000 |
| Switched virtual interfaces (SVIs) | 2000 | 2000 | 4000 |
| Security and QoS hardware entries | 16,000 | 16,000 | 32,000 |
| MAC addresses | 32,000 | 55,000 | 55,000 |
| Switched Port Analyzer (SPAN) | 2 ingress and 4 egress | 2 ingress and 4 egress | 8 ingress and 8 egress |
| Minimum software requirement | Cisco IOS Software Release 12.2(20)EWA or later | Cisco IOS Software Release 12.2(25)EWA or later | Cisco IOS Software Release 12.2(54)SG or later |
| Feature | Specification |
| Layer 2 features | • Layer 2 switch ports and VLAN trunks • IEEE 802. 1Q VLAN encapsulation • Dynamic Trunking Protocol (DTP) • VLAN Trunking Protocol (VTP) and VTP domains • VTP Pruning • PVST and PVST+ • Flexlink • Spanning Tree PortFast and PortFast Guard • Spanning Tree UplinkFast and BackboneFast • IEEE 802.1s • IEEE 802.1w • IEEE 802.3ad • Spanning Tree Root Guard • Cisco Discovery Protocol Versions 1 and 2 • IGMPv1, v2, and v3 snooping • Cisco EtherChannel technology, Cisco Fast EtherChannel technology, and Cisco Gigabit EtherChannel technology • Port Aggregation Protocol (PAgP) • Link Aggregation Control Protocol (LACP) • Unidirectional link detection (UDLD) and aggressive UDLD • IEEE 802.1 QinQ in hardware • Layer 2 protocol tunneling • Multilayer jumbo frames (up to 9216 bytes) • Baby giants (up to 1600 bytes) • Unidirectional Ethernet • Storm control (formally known as broadcast and multicast suppression) • Private VLANs (PVLANs) • Forced 10/100 autonegotiation • Web Content Communication Protocol (WCCP) Version 2 Layer 2 redirect • Private VLAN promiscuous trunk • Layer 2 promiscuous trunk over trunk port (L2PT) • Class-of-service (CoS) mutation • E-OAM IEEE 802.3ah and CFM IEEE 802.1ag |
| Layer 3 features | • Jumbo frames on all ports (up to 9216 bytes) • Hardware-based IP Cisco Express Forwarding routing • IP Routing Protocols: EIGRP, OSPF, RIP, IS-IS, and RIP2 • BGP4 and Multicast BGP (MBGP) • NSF awareness • Hot Standby Router Protocol (HSRP) Versions 1 and 2 • Software routing of Internetwork Packet Exchange (IPX) and AppleTalk • IGMPv1, v2, and v3 • IGMP filtering on access and trunk ports • IP Multicast Routing Protocols: PIM, SSM, and Distance Vector Multicast Routing Protocol (DVMRP) • Auto-rendezvous point (Auto-RP) • Pragmatic General Multicast (PGM) • Cisco Group Multicast Protocol server • Full Internet Control Message Protocol (ICMP) support • ICMP Router Discovery Protocol • PBR • VRF-Lite • VRF-aware IP services • OSPF fast convergence • OSPF and EIGRP fast-convergence protection • EIGRP stub • Virtual Router Redundancy Protocol (VRRP) • IP unnumbered for SVI • NSF awareness • Web Cache Communications Protocol (WCCP) Version 2 (future) • GLBP |
| High-availability features | • 1+1 hot swappable AC or DC power supplies • Hot-swappable field-replaceable fan tray with redundant fans • HSRPv1 and v2 • VRRP • Cisco IOS EEM • Cisco Generic Online Diagnostics (GOLD) • Smart Call Home |
| IPv6 support | • RIP next generation (RIPng) for IPv6 • OSPFv3 • EIGRP • PIMv6 (SM) • IPv6 unicast and multicast forwarding in hardware • IPv6 addressing architecture • Cisco Discovery Protocol IPv6 address family • Cisco Express Forwarding and Distributed Cisco Express Forwarding in hardware • Extended ACL • ICMP rate limiting • ICMPv6 • ICMPv6 redirect • IP MIB • IPv6 over IEEE 802.1Q • IPv6 over IPv4 GRE tunnel (tunnel support in software) • Intrasite Automatic Tunnel Addressing Protocol (ISATAP) • Loopback • MLD snooping • MLDv1 and v2 • Maximum transmission unit (MTU) path discovery for IPv6 • Ping • IPv6: Secure Shell (SSH) over an IPv6 transport • Stateless autoconfiguration • Static routes within IPv6 • Authentication, authorization, and accounting (AAA) • Telnet • Trivial FTP (TFTP) • Traceroute • Duplicate address detection • Standard ACL • IPv6 t |
