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Cisco Catalyst 4948E - Kytkin - L3 - Hallinnoitu - 48 x 10/100/1000 + 4 x SFP+ - räkkiin asennettava

WS-C4948E-E
19351,90 €
Näyta hinta: sis. ALV ilman ALV
Verkkokauppa:
04.01.2019

Arvioitu toimitusaika: 04.01.2019
Toimituskulut: alkaen 11,70 €
Nouto myymälästä0,00 €
Postin pakettiautomaatit11,90 €
Postipaketti12,80 €
Ovelle-paketti14,30 €
Kotipaketti20,60 €
Matkahuolto Lähellä-paketti12,90 €
Matkahuolto Bussipaketti11,70 €
Myymälät:valitse
04.01.2019
Tuotetiedot
Liitettävyys
Ethernet kaapelointiteknologia1000BASE-T,100BASE-TX,10BASE-T
Peruskytkentä RJ-45 Ethernet-porttien tyyppiGigabit Ethernet (10/100/1000)
Basic kytkentä RJ-45 Ethernet-porttien määrä48
SFP+ -moduulipaikkojen määrä4
Paino ja mitat
Paino8,62 kg
Tuotteen korkeus44 mm
Tuotteen leveys444 mm
Tuotteen syvyys493 mm
Virranhallinta
Virrankulutus230 W
AC-syöttötaajuus50/60
AC-syöttöjännite90-264
Virrankulutus (maks.)275 W
Virtalähde mukanacheckmark
Ympäristöolosuhteet
Käyttökorkeus-60 - 2000 m
Suhteellinen kosteusalue10 - 90%
Varastointilämpötila-40 - 75 °C
Käyttölämpötila0 - 40 °C
Lämmön poisohjaus1173 BTU/h
Verkko
VerkkostandarditIEEE 802.1D,IEEE 802.1Q,IEEE 802.1p,IEEE 802.1x,IEEE 802.3,IEEE 802.3ab,IEEE 802.3u,IEEE 802.3z
STP-Protokollacheckmark
VLAN-tukicheckmark
10G-tukicheckmark
Datasiirto
MAC-osoitetaulukko55000 entries
Kytkentäkapasiteetti176 Gbit/s
Jonojen määrä8
VLAN:ien määrä4096
Suojaus
MAC-osoitteensuodatuscheckmark
Pääsynhallintalistacheckmark
IGMP snoopingcheckmark
Hallintaominaisuudet
KytkinkerrosL2/L3
Quality of Service -tukicheckmark
Multicast-tukicheckmark
Www-hallintacheckmark
Kytkin tyyppiHallittu
Liikenteen muokkauscheckmark
ARP-tarkastuscheckmark
Suunnittelu
Telineasennuscheckmark
TurvallisuusUL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950, IEC 60825-1, IEC 60825-2, EN 60825-1, EN 60825-2, 21 CFR 1040
EMC-standarditFCC, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI, EN55024, ETS300 386, EN50082-1, EN61000-3-2, EN61000-3-3
Kotelo1U
Tuotteen väriHarmaa
Suorituskyky
Suorittimen taajuus1000 MHz
Sisäinen muisti1024 MB
Keskimääräinen vikaantumisaika145422 h
Sisäinen suoritincheckmark
Laitteen puskurimuistiin17,5 MB
EAN882658292286
Takuu3 kuukautta
Source: Icecat.biz
Kuvaus

The Cisco Catalyst® 4948E and 4948E-F Ethernet Switches are the Cisco Catalyst 4900 Series data center switches built from the start to deliver best-in-class, full-featured server-access switching. The switches include identical features except that the Cisco Catalyst 4948E offers front-to-back cooling, and the Cisco Catalyst 4948E-F offers back-to-front cooling. Each switch offers forty-eight 10/100/1000-Gbps RJ45 downlink ports and four 1 and 10 Gigabit Ethernet uplink ports. The switches are designed to simplify data center architecture and operations by offering service provider-grade hardware and software in a one-rack-unit (1RU) form factor optimized for full-featured top-of-rack (ToR) data center deployments.

The Cisco Catalyst 4948E and 4948E-F build on the advanced technology of the Cisco Catalyst 4948 Switches, the most widely deployed ToR switch in the industry, with more than 10 million ports deployed worldwide. The Cisco Catalyst 4948E and 4948E-F double the uplink bandwidth and offer true front-to-back and back-to-front airflow with no side or top venting. The airflow direction is controlled by the changing of fans. Optional front-to-back and back-to-front airflow management reduces data center operating costs by providing strict hot-aisle and cold-aisle isolation.

Hot-aisle and cold-aisle deployment remains the widely adopted best practice for data center cabinet layouts today. Networking switches and computing servers mounted in a single cabinet need to maintain the separation of the inlet cold air and the exhaust hot air for efficient use of cooling resources. The Cisco Catalyst 4948E and 4948E-F switches provide the option of front-to-back airflow (Cisco Catalyst 4948E) and back-to-front airflow (Cisco Catalyst 4948E-F) for ToR switch deployments.

Exceptional reliability and serviceability are delivered with optional internal AC and DC 1+1 hot-swappable power supplies and a hot-swappable fan tray with redundant fans

Scalability and Performance

- Nonblocking server-to-server traffic with 176-Gbps aggregate throughput
- Ease of migration from Gigabit Ethernet to 10 Gigabit Ethernet upstream with support for SFP and SFP+ optics
- Large buffers optimized to handle microbursts with 17.5 MB of centralized buffering, helping ensure that business-critical packets are not lost due to insufficient buffering
- Active queue management through dynamic buffer limiting for TCP throughput optimizations
- Investment protection through data center design with dual-stack IP Versions 4 and 6 (IPv4 and v6) support
- Advanced quality of service (QoS) with eight configurable queues for each port
- Data center server virtualization support for larger Layer 2 domains with scalable MAC addresses
- Support for a wide variety of optics connecting to the aggregation layer
- Front-to-back and back-to-front airflow options

Enhanced Manageability

- Pay as you grow with software feature packages, from Layer 2 only (LAN Base) to full Layer 3 capability (Enterprise Services)
- Reduced operating expenses (OpEx) with tools such as AutoInstall and Cisco IOS® Embedded Event Manager (EEM) that enable immediate availability
- Data center automation with IP service-level agreement (SLA) and Smart Call Home
- Data center optimization with true front-to-back and back-to-front airflow, including power suply cooling
- Enhanced application visibility with smart flow logging
- Enhanced manageability through eight bidirectional Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) sessions
- Network visibility through Cisco® NetFlow-Lite (future support)

Resiliency

- 1+1 AC or DC power supplies and hot-swappable fan tray with redundant fans for high availability for mission-critical applications
- Optimized forwarding across all four uplinks with equal-cost multipath (ECMP) load sharing
- Improved resiliency with protection from attacks with access control lists (ACLs), Control Plane Policing (CoPP), Address Resolution Protocol (ARP) inspection, and Dynamic Host Configuration Protocol (DHCP) snooping
- Active queue management using dynamic buffer limiting (DBL) for increased security and network control

Cisco IOS Software

Cisco IOS Software is a proven network OS that offers best-in-class availability, manageability, and scalability.

The Cisco Catalyst 4948E and 4948E-F support three levels of Cisco IOS Software. The basic level is LAN Base, developed for deployments that require data center-class hardware along with Layer 2 switching but not advanced features such as routing and Cisco IOS EEM. The next level of software is IP Base; this level supports static routes, Routing Information Protocol (RIP) Versions and 2, and Enhanced Interior Gateway Routing Protocol Stub (EIGRP-Stub) for limited routing. The top level of software is Enterprise Services; this level adds support for advanced routing protocols such as Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), Intermediate System-to-Intermediate System (IS-IS) Protocol, and EIGRP.

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